and more than half a million bottles of instant tylenol are recalled because of complaints that the new bottle makes it hard to get the dosage right. authorities say a man arrested blocks from the u.s. capitol today represents one of the most urgent growing threats. the man picked up is a would-be suicide bomber and he was arrested as he accepted what he thought was a gun and a vest packed with explosives. our brian todd is live at the u.s. courthouse where the suspect just appeared in court. fascinating new details coming out in the court papers. fill us in. >> reporter: certainly, john. a very dramatic day where this alleged plot has unfolded in front of all of us. law enforcement officials say that they have had him in their watch for at least two months. he made an appearance before a judge. he's charged with the unlawfully attempting to use a weapon of mass destruction against property that is owned by the united states. the details, john, that you mentioned, according to court documents that during meetings with undercover officers, he allegedly desired to use and initially had his sights on attacking a rest are raunt in washington, d.c., possibly synagogues, possibly a military location and here's more interesting information from court documents from an affidavit. it alleges that last month when he settled on the capitol, he had modified his plans for an attack, that same day on january 15th of last month, at a quarry in west virginia, the proposed suicide bomb operations, he dialed a cell phone that he believed would detonate a bomb placed in that quarry. the test bomb detonated and expressed his desire for a larger bomb in his attack. he listed today as the day of the operation and he was picked up at a garage near the u.s. capitol as he was picking up what he thought was going to be a suicide vest. it was a vest gift into him and a gun about those of thoet were inpop rabl. some very interesting details. allegedly, according to law enforcement officials, he had this under. >> brian, thank you. let's dig deeper. we're joined by cnn contributor todd fuentes. they are controversial sometimes. when you have an operation like this, you have a suspect and start tracking him and the fbi gets involved with him. how does it unfold? >> these cases are reported by the hundreds throughout the world. sometimes people are trying to report on somebody they don't like, a neighbor or ex-husband or something like that. the fbi has to look at the investigation and find out if it's a credible threat or report and is this person really intent on it or is it someone trying to get a neighbor in trouble or something else. if they are finding out that this person wants to carry out the attack, that he's looking for experts and other terrorists, then that gives him the opportunity to possibly introduce undercover agents posing as al qaeda or other terrorists. and then in that investigation they should be able to record conversations, get his e-mail addresses, intercept other e-mail and determine if he's really serious. my understanding from sources today is that around december, a couple months ago, is when this really took on -- that they knew he was absolutely serious. he was intent on using a suicide vest. we heard about the initial things he talked about. but later he settles on the capitol. a suicide vest. and at that point you know that this is going to be horrific. it's going to have mass media attention doing something like that at the capitol and it would be the first time to have a suicide vest used by someone in the united states and in this case, right in washington, d.c. >> so we've heard for some time, whether it's at the cia, the biggest worry was to have a lone wolf. how did you find out if this is a single operator, a lone wolf and how much harder is it to have someone stopped and tracked if they were operating on their own. >> once you find out about them, it is almost a sigh of relief. there are co-conspirators that are going to carry out a simultaneous attack or assist him in this attack. the lone wolf is very difficult. the fbi and other agencies conduct community outreach saying, please help us. if you hear on somebody intent on doing this, he hates the united states or wants to commit an act, please report it. please tell the police and fbi and then they can start to look at, is this, in fact, that individual lone wolf and in this case, with the fbi satisfied that in fact he doesn't have other conspirators out there, if they arrest him, that will be the end of the plot. they will have the entire thing contained and they will move forward. >> they wait for that moment that they are certain and then go forward? >> yes, they can. if the subject enables them to have that ability, yes, they do. >> tom fuentes, thank you. we're going to shift now to politics. mitt romney lit into rick santorum with the same force that he usually does. idaho holds caucuses on super tuesday. that's march 6th. >> i hope people take a close look at his record because he was in congress for about 20 years and during that time the size of the federal government doubled during his time in office. he voted for billions of dollars of earmarks, including the bridge to nowhere. if you want a fiscal conservative, you can't vote for him. i am. i balance the budget. i'll get america back on track economically. >> with us now, senior correspondent, michael kroul crawley. you say, number one, don't lunch right, don't roll out a new mitt and don't stop attacking. tell us what we just heard mean and why it's so important. >> he's fired up and ready to go. sounds like obama in 2008. he's got energy and emotion. republican voters know mostly good things about santorum. he wasn't attacked in these debates. he was a senator for a long time and there's a reason why the senators have a hard time running for ofrs. there are a lot of compromises and things you sent out the door to get them done. romney's going to remind republican voters of all of the things that santorum did in the senate and i think their opinion of him may change. so i think the best strategy is to attack, attract. don't try to completely reinvent yourself. when you try to do it in a moment of pressure, it seems too phony. i think he has to live by who he is. he's not a great politician. he's got to say, i'm a manager, a fix-it man. he can pump it up a little more. that's fine. and finally don't lunch to the right. the nomination is not worth having if you can't get elected. is he so conservative. romney's best strength is that he has that moderation. i think basically fire away and see if the attacks work. >> arizona and michigan round out the month and romney was and has michigan roots and santorum is saying, wait not so fast. it's not just mitt. >> when my grandfather first came to this country back in 1925, he actually came to detroit and worked for the auto industry. and so we do have some roots here in michigan. >> we're all for michigan as this one rolls around. but give me your take on santorum. a new poll shows that he's still holding a 5-point lead. so at the moment he's holding. as you mentioned, the attacks and the ads are going up. but his growth as candidate from early on, how would you assess him? >> well, santorum? i think he's growing into it. i think he's doing a pretty good job. he doesn't make a lot of mistakes. he's done a pretty good job of staying on his message. he has maybe some problems with his supporters. a certain billionaire that caused controversy. >> off-collared humor? >> off-collared humor. but santorum did a great job of locking that down. when a fuller picture of him emerges, his career in washington, what he did after he left the senate, he's a blue collar candidate, the guy is a millionaire. it's just going to make things more complicated and i think that michigan is going to be a close race and a hard fought one and we're just going to have to see whether the romney attacks cut him back down to size or not. >> somebody in the family owns an audi. we'll see how that plays. >> not a blue collar car. >> thank you. heading to egypt to stop a crisis over 1600 americans detained by the egyptian government. next, a graduate student who cracked a computer code and discovered google may have been watching you even if you're using apple gadgets that are supposed to block it. >> what's going on here is a cat and mouse game or an arms race where users try to protect themselves and company tries to trump it and everything resets. the first technology of its kind... mom and dad, i have great news. is now providing answers families need. siemens. answers. in the works package, we change the oil we change the filter... tire rotation, suspension, we make suspension checks... what we have here is the multi-point inspection. every time a vehicle comes into a ford dealership you'll be presented with one of these. we check the belts, hoses... brakes. tires and the pressures... battery, all your fluids... exhaust system, transmission... we inspect your air filter... it gets done,it gets done quickly and it gets done correctly. the works. oil change, tire rotation and more: $29.95 or less after rebate - at your ford dealer. you're a doctor... you're a car doctor. maybe a car doctor... for febreze fabric refresher. they agreed. 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"the wall street journal" revealed today that even on safari, google may have been tracking you. the stran ford graduate who broke the code is here. jonathan, how did you do it? >> we began by running advertisements of our own and in those ads we included some code that measured which advertising networks had placed cookies in users' browsers and we targeted those ads to users of iphones, ipads, and i touches. that clued us into something was wrong. >> google was asked about this by "the wall street journal" and a spokesperson said the journal mischaracterizes what happened and why. if you go to safari, there are plenty of exceptions and i'll take advantage of a loophole. true? >> i would gdisagree with the wy that google has respondsed to our findings. google suggested that this pmz was okay because it's technically possible. there are all sorts of things technically possible that we criticize people for doing. >> should we be surprised at all, though? >> i think so. i think google should be held to a higher standard. google prides itself on being the company that wants the world information, it's quite proud of the motto, don't be evil. so i think we should expect more from them. google has suggested that what happened here was a mistake. that certainly is a plausible story. it aligns with the research data that we collected. but, of course, mistakes are not enough. if a company is negligent in its treatment of personal information, i think that should still have some consequences. >> so if there's somebody out there that maybe made the choice to get an ipad or an ipod because they thought they were safer, they were more protected, they were being watched a lot less and have more privacy, what's the message to them and to us? does anyone have the right to have an expectation for privacy? >> i think regrettably this episode reit fis the understanding from some privacy researchers and advocates that what's going on here is a cat and mouse game or an arms race where users try to protect themselves and companies try to trump the users' expectation and everything resets. >> if there's a user that is watching and says, i've got my iphone and ipad in my hand, i want to protect myself, what should they do? >> we did some research of preventing blocking. regrettably, it appears at the moment, the most effective skills require blocking advertisements. and that's certainly not a good outcome because then you're forces consumers to subsidize and their personal property. >> jonathan, appreciate your time tonight. i guess some are not surprised that they may think they are not being watched but they are. congratulations on cracking the code and thanks for watching us tonight. >> thanks. have a good night. next, news new parent wants to hear. infant tylenol you may be giving your child the wrong dose. plus, the scramble to protect clean drinking water. ♪ [ male announcer ] offering four distinct driving modes and lexus dynamic handling, the next generation of lexus will not be contained. the all-new 2013 lexus gs. there's no going back. see your lexus dealer. golly, that is deep snow! yeah, can you get me out of it? of course. travelocity? that's how i got here! that's amazing! but i'm still stuck. come on man, dig it! 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[ male announcer ] one pill a day. 24 hours. zero heartburn. welcome back. here's kate bolduan. >> welcome back. some news to catch you up on. good evening, everyone. just moments ago chris christie vetoed the same-sex marriage bill as he promised. this comes one day after the state assembly passed the bill. christie, a republican who opposes gay marriage, believes voters should decide the issue and wants a statewide referendum. other news we're following, a major recall we want to tell you about of infant's file nol. more than half a million bottles are being pulled over consumer complaints that the dosing syringe is confusing to use. the company says the medicine, though, is safe. and media magnet rupert murdoch launched a new paper. making illegal payments to police and other officials. murdoch staffers there are -- murdoch staffers there are now making plans to launch sunday's edition of the "sun." senator john mccain is leading a delegation heading to egypt to meet with the head of the egyptian military in an effort to resolve the crisis of american workers in cairo. one of those workers, i'm sure you will remember this, is the son of ray lahood. last night we told you about a plane being intercepted in the restricted air space. we now know more details. authorities say the cessna did not respond to repeated attempts to make contact and once f-16s forced the plane to the ground, they found 22 pounds of marijuana on the plane. even though the pilot did violate air space, they don't think he actually intended to harm the president but sounds like he's in a little bit of trouble right now. >> a little bit of trouble because he violated the restricted air space. this is the white house. if you live or work in washington, you understand, there is always restricted air space around the white house. you are not allowed to fly in this space at all. the capitol is here, washington monument here, and if you're a pilot and you're looking at the map, you have a little restricted space right here. the capitol of the white house complex and monument. you can see these other circles. this is forbidden air space and restricted air space. that restricted air space goes with the president when he 2r568s. here travels. marine one is trying to land at the airport as that happens just before 11:30 a.m. local time. a cessna from santa maria comes into that 30-mile restricted zone. it crosses in and guess what happens automatically? up come those f-16s. helicopter goes on to land safely but the cessna gets an escort. two of his closest personal friends now take him to long beach airport. they bring him in. this happens in washington not all the time but frequently. planes get into that space, the f-16s scramble, they have a bit of an interrogation. this time they found 22 pounds of marijuana. the pilots in the interviews had to answer for the marijuana but there was no evidence that there was any threat to the president, any intent to harm the president. this guys in a little bit of trouble. the president after a bref delay headed to san francisco. the moral of the story is, if the president is in the neighborhood, be careful where you fly. i guess especially if you're trying to smuggle drugs. not smart at all. the stock market is higher than it's been in years. in a moment we'll tell you what might go down first. later, the truth about rick santorum's confusing questions about contraception as we visit the culture wars. 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