will these new rules make any difference? this is jay. i need you to do something for me. >> and are hackers using a.i. to try to get sensitive information from tech companies? the warning tonight from a bay area ceo. good evening. i'm raj mathai. we're going to get to all those stories in just a moment. >> but we want to start with some other headlines we are watching on this monday evening. a driver under arrest after a fiery police chase from san francisco to martinez. that driver accused of throwing explosives out of the car at san francisco police officers. this all started during sunday mass at saints peter and paul church in north beach. 42-year-old daniel garcia is accused of knocking a parishioner unconscious when they refused to give him money. that triggered a police chase, first on foot and then in cars. that's when investigators claim garcia threw explosives at the officers. today the sf police union released this photo of what appears to be one of those detonated explosives. investigators say as the chase continued onto eighth and mission, officers faced a second ploegs. >> the suspect then threw out a secondary device at the officers. they saw that device go out of the window at eighth and mission. that device detonated as well. they could see the flames, and they could feel the explosion. they felt that that was a larger explosion than the first one up on jones street. >> the chase ultimately ended with more than 30 miles away in martinez. court records show the suspect does have a history with explosives. in 2011, he was found guilty of federal charges related to a car bombing in fairfield. sfpd at this point has not released or doesn't have any information about a motive for yesterday's assault. another headline that we are watching, a child sickened by a cannabis chew mistaken for candy. that chew came from an at-school weekend halloween party in alameda. the child apparently ate a kiva lost farm cannabis-infused fruit chew. you see a photo right there. the wrapping looks a little bit like a starburst candy but included the words "cannabis infused." we're told the child is recovering well and did not need medical attention. the child apparently got the chew at a trick-or-treat event at earhart elementary. other children found those chews in their candy from that event. alameda police investigating how those chews ended up at the party. the school is urging all parents to check the candy from that event. also tonight, oakland tried something new, but it didn't quite work. confusion and frustration after that weekend experiment that meant to crack down on car break-ins. opd pulled the plug less than 24 hours after it started. here's what we know. last week opd announced it would try a pilot program. the department asked people to post details of car break-ins in real time to special online accounts on instagram and twitter, so not to call 911 but to post it on social media for a quicker response. the pilot program was initially scheduled to run through the weekend, both days. but less than 24 hours after it started, opd announced that they ended the test and deactivated the instagram and twitter accounts set up for this weekend's pilot program. opd says the test was meant to be limited, but residents say the whole thing left them confused. >> that seems like a very short pilot program. >> if it doesn't work, then you don't continue to use it. but you do have to give it more than 24 hours. >> a source within opd tells us that rank and file officers were never given any details or orders related to this operation. the department has not responded to that claim. opd says they're currently reviewing the results of this weekend test. they say they'll release those findings after the review. okay. here's your warning. be careful of the traffic if you're commuting between the peninsula and the east bay. this could be a real headache beginning about five minutes ago. all eastbound lanes of the dumbarton bridge were closed and will remain closed. here's the deal. every night this week, all the eastbound lanes will be closed 7:00 p.m., so about four minutes ago, until 5:00 a.m. this is a live look now on the palo alto side of the dumbarton bridge. the eastbound side. so east palo alto into the east bay are closed. here's a look at the closure now and the recommended detours. if you're headed from the south bay to fremont, you should take calaveras boulevard. drivers headed from san mateo to the east bay should use the san mateo bridge. so really take 237 or the san mateo bridge. caltrans also urging you to expect it just to take a little longer to reach your destination. that's not all. here's another big one. next weekend, caltrans will also be closing a large section of southbound 680. you see t map here. this closure runs from the 580 connector in dublin all the way south to highway 84 in sunol. that's coming up next weekend. joining us on the phone is janice mara from cal trangz. nice to have you on the program. why the closures? what exactly are you fixing? >> hey, hey. well, thank you so much. we really appreciate getting the word out. of course, needless to say, we're kind of hoping that folks will be able to avoid the area though we know it's not always possible, and we appreciate your sharing the detours. there are a number of factors at play in these closures. now, for example, talking about the dumbarton bridge, with regard to the timing of the work, during part of the year, the clapper rail is nesting along the marshlands that are next to the bridge. so, of course, we don't want to disturb the nesting clapper rail, and hence work can only be performed between september 1st and the end of february. >> okay, janis, if i can jump in, you're referring to a bird, is that correct? >> yes, that's right. exactly. sorry. i hadn't thought of that. the clapper rail is kind of an interesting name. exactly, they're a nesting bird along the marshlands next to the dumbarton bridge. so, hence, we can only work between september 1st and the end of february. >> okay. i got you. then what about the timing here? 7:00 p.m. seems a little rough for the commuters. why not 9:00 p.m. or 10:00 p.m.? >> well, i totally see your point. we do have traffic operations folks here who did a thorough analysis, and i'd like to share with you that between 7:00 p.m. and 5:00 a.m., only 7,900 vehicles will traverse on a normal night obviously eastbound state route 84 across the dumbarton bridge. about that many vehicles cross the bridge eastbound in two hours of commute time. so we definitely are doing it at a time when there's very little traffic. >> so about 8,000 commuters based on your statistics. look, we all want better roads, so i guess we have to pay the price at some point. what exactly are you fixing on the dumbarton bridge, janis? >> yes. so during the closure, our workers are going to replace deteriorated pavement between the east end of the bridge and the toll plaza. so what is going to happen, as you have so kindly detailed, is that monday night, tonight, tuesday, wednesday, thursday, friday, the bridge eastbound will be closed between 7:00 p.m. and 5:00 a.m. and when the bridge reopens at 5:00 a.m. saturday morning, there will be a smooth ride for motorists i tha area. >> that is great news. while we have you, another big closure. 680 southbound for a full weekend, and that's coming up next weekend. how do you decide what type of closure to do? the overnights like you're doing with the dumbarton or the entire weekend like you're doing 680 southbound next weekend? >> you know, that is very interesting. as ever, of course, there are a number of factors at play. with the dumbarton bridge, we're replacing deteriorated asphalt, and asphalt doesn't take very long to dry. we like to replace a material with the same material if we can, so we will be replacing the deteriorated asphalt with new asphalt. and that only takes about an hour or so depending, of course, on various conditions that are at play. with regard to the weekend closure on southbound i-680 november 3rd through 6th, we are replacing deteriorated concrete with new concrete. and concrete takes longer to, as the phrase goes, to cure. and the curing process involves dryings well as other processes that make the concrete hard enough to drive on. so that's why we need more time for our closure of southbound i-680 coming up this weekend. thank you very much for your mentioning it. again, as with the dumbarton bridge, we do hope that commuters and everybody else on the weekend who is driving will avoid the area. >> janis, you're getting us a good education on what's happening on our roads. again, we need this, so we appreciate it. really quick, last question, what's the next closure? can you give us a little sneak peek? >> well, what we're hoping is to give everybody a little bit of a break from weekend closures. to the best of my knowledge, but don't hold me to it because these things can change. but i believe hopefully this will be the last one for this year. but as you know, those weekend closures definitely one of the great things they do is they cut down on the number of nighttime closures. so that's something that's good for the public. and, again, we really want to thank the traveling public for your patience with all these closures. and as you said, there is a reward at the end, a smooth ride for motorists. >> janis mara with caltrans, appreciate your time tonight. we're looking at a live shot right now. you're seeing it, no cars right in front of you. this is the dumbarton bridge, all eastbound lanes, so essential from the peninsula into the east bay, you need to use the san mateo bridge or 237. thank you. let's move on. another shake-up of sorts at the alameda county district attorney's office. this involves embattled d.a. pamela price. prosecutors who were put on leave when price took over in january are now being told to come back to work even though they're still under investigation. let's bring in nbc's jessica aguirre. okay. what's exactly happening here? they were put on leave, but then they were asked to come on back. were they cleared of any of their wrongdoings? >> no. these investigations are still pending. this all dates back to when pamela price came into office. she almost immediately placed seven career prosecutors on paid leave. three of them resigned but four others remained on paid leave. then about ten days ago, those three out of the four remaining deputy d.a.s were suddenly called back to work. the prosecutors were originally put on leave for a variety of reasons, some on allegations of campaign violations connected to price's first unsuccessful run for d.a. in 2018. others accused of prospectivele misconduct dating back before price took office in january, something that the union attorney that represents the seven says is unusual. >> i've never had someone put on administrative leave or disciplined in the public sector for something that didn't happen under that person's watch. >> so she inherited some of these problems here. they were put on leave. they were brought back. what's it costing taxpayers in alameda county to have them stay on the sidelines for so long? >> just to be specific, those seven prosecutors were from the previous administration, o'malley. she came into office, and she made these allegations against them for prior conduct that she alleges was wrong. >> sure. >> so matt finnegan, the man you saw there, is the union attorney that represents the seven. he is the one who actually negotiates the contracts. he says that three prosecutors left within a few months, but he says the four continued to draw the $260,000 a year salaries plus $78,000 in benefits. that's for ten months. then he said if you add to that the $200,000 spent to hire the firms to do those investigations, he puts the cost to taxpayers at $1.6 million since the beginning of january. you have to keep in mind there's still one prosecutor out on paid leave, so that tab is going to keep going. >> so it's costing some taxpayer money here. any idea why those prosecutors were told to come back to work after so much time? >> so my sources have told me that the bringing back those three of the four prosecutors coincides with the fact that two other longtime prosecutors who have been with the d.a.'s office for 15 to 20 years suddenly resigned. so there was a deficit, and that's how the timing works out with that. >> so the next question will be obvious. what's the district attorney's response and how is she defending this or questioning some of the reports? >> so i invited pamela price to sit down and talk about this. but, again, her office said that the district attorney doesn't talk about personnel issues. but in past youtube videos, she has said that she thinks the investigations were necessary and that that's why she took that step. >> and we're still going through a possible recall for the d.a., correct? >> yes, we are. exactly. >> thank you, jessica. up next now, are hackers using a.i to get sensitive information from tech companies? a bay area ceo says someone used artificial intelligence to mimic his voice and then call one of his employees. also, the white house releasing new rules and regulations for a.i. companies. that, of course, turns a lot of welcome back to "nbc bay area news tonight." are there any rules when it comes to artificial intelligence? well, not really. it's been the wild west ever since a.i. started to take off. but now with the urging of many silicon valley ceos, we're getting some guidelines. today president biden issued a new executive order. it's the u.s. government's first action of this kind when it comes to a.i. the sweeping order creates basic general guidelines for things like safety, consumer privacy, equity, civil rights, and innovation. the goal is to make sure, as a.i. develops, companies can profit without putting public safety at risk. among the finer points, large companies must share safety test results with the government before officially releasing its a.i. systems. many tech analysts are calling it a good first step. >> but i think leadership also means responsible leadership. bay area has an opportunity to show that not only we are helping the world to usher in the a.i. transformation era, but we can show the world how we can responsibly use a.i. >> can we responsibly use a.i.? scott budman, you are all over a.i. we did this with social media many years back, and there weren't many regulations. >> right. >> are we about to do this with a.i. now? >> but we are, but with many regulations. i think some of the lessons from what you were referring to from social media, election information, our data being taken without our knowledge, were lessons we learned and the government learned, and now they're trying to get ahead of a very rapidly growing industry. >> how thick was the booklet of guidelines from the president? does it have any teeth, or is it just something to say, hey, we're on it? >> it's a little bit of both. there are some teeth, and the government is going to require companies to show some guidelines, some guardrails to show that they're not just operating blindly. but also, look, raj, from the jump -- and we're talking all year -- has a week gone by when we haven't seen a deep fake video or someone faking a voice? these are so common now that i think the industry realizes if we want to move forward with credibility, we have to have some regulations. and we've seen enough of these deep fake attempts, some successful, that even companies are saying we need regulation to move forward with trust. that's what joe biden wants to see. >> the companies say it, but we've been around a block a little. do they mean? does google really want government all over them? >> they don't want them all over them, but i think a little bit of compromise will go a long way here to say, we're going to stop the deep fake videos. we're going to stop all those voice fake things that you see. and we're going to play ball with the government this much so that we don't have to worry about playing government all the time. and i think that's something the tech industry has in certain areas done successfully, and i think that's what they want to do here. >> everything is happening in real time here. >> very quickly, yes. >> here's one of the dangers of artificial intelligence. a high-tech ceo says hackers are using a.i. to try and fool employees into giving away money or company secrets. nbc's scott mcgrew explains exactly what happened. >> i am going to tell you a story about a security incident at a san jose tech company. while everything worked out okay in the end, it was a real scare for the company. you may have noticed my voice sounds not quite right. that's because it is artificial intelligence. i taught a.i. how to sound like me, and that's what the bad guy did to with c scaler's ceo. >> tell me what it sounded like? >> very much like my sound. i could not tell the difference personally. >> but it wasn't you? >> it wasn't me. >> reporter: this is my real voice now. here's what happened. someone called a z scaler employee on whatsapp, pretending to be the company's ceo, jay chaudry. >> hi, this is jay. i need you to do something for me. >> reporter: and then quickly followed up with a text, i think i'm having poor network coverage, and of course at some point, that unknown person starts asking for money. >> the trick is they don't want to have a conversation. so they hang up. then they send a text, sorry i'm in a bad area. please go ahead and buy so many gift certificates. >> reporter: the employee, no dummy, was immediately suspicious and reported it. >> thankfully the employee reported this campaign to us. as the security research team looked into it, it's actually a widespread campaign. >> reporter: all companies, all employees at those companies need to watch out for the call from the ceo that isn't really the ceo. >> hi. this is jay. i need you to do something for me. >> reporter: in san jose, scott mcgrew, nbc bay area. >> yep, this stuff is happening. as a reminder, you can catch scott mcgrew and the rest of our morning team every weekday beginning at 5:00 a.m. it's a really great way to get caught up on the latest overnight news before you head out the door. a live look now at the bay bridge. rob mayeda joins us now with our eayrl all right. welcome back. rob mayeda is here to talk about our halloween forecast. the bay bridge looks sparkling behind you. >> and a gorgeous 72-degree day in san francisco earlier. so if you liked today's forecast, you're going to see a repeat performance tomorrow. highs as warm as the low 80s south of san jose. let's take you into that halloween microclimate forecast. a look at tomorrow's high temperatures. low to mid-70s from san francisco over to oakland. 76 in san jose. highs near 80 tomorrow even though the day begins with high clouds at times. you can see the clouds starting to thin on out and that trick-or-treat forecast starting at 6:00. look at these temperatures. still 70s hanging on around saratoga and los gatos as of 6:00. then sunset is at 6:12. 7:00 and 8:00, dropping into the mid-50s to low 60s. so a jacket should be just fine for those trick-or-treat plans tomorrow. and another warm day ahead for wednesday. then come the shower chances, mainly for the north bay thursday. i think our best bet for finding rain will be late saturday into early sunday morning. but a perfect perfect holiday forecast just around the corner. >> thanks, rob. here's what's coming up tonight on nbc and prime time. the battle rounds continue on "the voice." that's at 8:00. then at 10:00, the hit crime drama "the irrational." then at 11:00, back here for our live and local nbc bay area 11:00 news. that's going to do it for us at 7:00. for everyone here at nbc, thanks for joi
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