Because the proud young muslim boy who built it almost wound up in jail. Instead, hes headed to the white house at the invitation of the president. Heres Mark Strassmann. I made it to impress my teachers. Reporter on monday Ahmed Mohamed brought to school this homemade digital clock, a Circuit Board wedged inside a pencil case. He showed it to his engineering teacher but told us it was his english teacher who got alarmed when the clock beeped inside his backpack during class. I brought the clock to my teacher and i showed it to her after class and i plucked it in and showed it to her that it was a working clock and she told me it looked like a bomb. Reporter he was arrested for building a hoax bomb. I felt like i was a criminal. I was profiled as a terrorist. Reporter he was fingerprintd and taken to juvenile detention. School district spokesperson lesley weaver. We were doing everything with an abundance of caution to protect all of our students in irving. Reporter police later concluded the device was harmless, just a clock as mohamed said all along, and declined to press charges. Irving police chief larry boyd denied the teen had been profiled because he was a muslim. We live in an age where you cant take things like that to schools. We have seen across our country horrific things happen. We have to err on the side of caution. The reaction would have been the same regardless. Reporter but social media exploded in outrage. People posed with clocks in solidarity, the hashtag, i stand with ahmed was repeated. Facebook founder Mark Zuckerberg invited him to stop by and president obama tweeted, cool clock, ahmed. Want to bring it to the white house . We should inspire more kids like you to like science. Its what makes america great. I didnt think i was going to get and supporters because i was muslim and i didnt think anyone would care about that. Reporter mohamed has been invited to the white house next month for an astronomy night to meet with government scientists. He is still serving a threeday school suspension. He told me Neither Police nor School Officials have apologized. Pelley Mark Strassmann in irving for us tonight, mark, thank you. You can hear more from Ahmed Mohamed tomorrow on cbs this morning. Tonight, the stakes are high for the top 11 candidates for the republican president ial nomination as they meet for a second time in a primetime debate, this one at the Ronald Reagan president ial library in simi valley, california. Major garrett is there for us major . Reporter they promise the make things better in a postobama world, no fireworks. Before the debate, some candidates desperate for attention resorted to some oldfashioned campaign gimmickry. Kentucky senator rand paul fired an ar15 at the federal tax code this morning to grab attention and take another shot at g. O. P. Frontrunner donald trump. I think if you get trump, you get more of the same, and i dont think everybody sees that yet but i see him as the consummate insider. I see him as someone who buys and sells politicians. Hes a classic narcissist who thinks he is so smart and so allpowerful that hell just take care of the chinese. Well, how . Reporter trump, no longer the novelty frontrunner, is now the main target for paul and most other g. O. P. Challengers, all of whom trump dismisses as incapable of dealing with china, russia, or iran. Theyre very nice people. But theyre never going to do anything with these countries. Theyre never going to be able to do it. Its an instinct. Its something thats special. They dont have it. Believe me, they dont have it. Reporter but the latest cbs News New York times poll shows other nonconventional candidates could challenge trumps outsider dominance. Neurosurgeon ben carson, who drew a huge crowd of reporters at tonights debate site, has risen from 6 to 23 . And Business ExecutiveCarly Fiorina climbed from less than 1 to 4 . Fiorina fought her way on to the main stage tonight and has that prime time stage and was welcomed there by some of her republican rivals. She promised to joust with trump tonight. If republicans want to take trump down a peg, one likely place of contention will be to suggest he lax the depth of knowledge and the temperament to be president. Pelley major garrett, thanks. Well, now lets measure the depth of knowledge of john dickerson, our cbs news political director and, of course, the anchor the face the nation. John, how do these contenders take a swing at trump . Reporter very carefully. They all have a strategy for taking on trump, but every candidate who has tried to do it, with the exception of Carly Fiorina, and shes one to watch tonight, every candidate who has tried has gone down in the polls. So the real challenge for these candidates is to deal with trump, but also to make the case for their own candidacy. Thats what voters will be attracted to. Pelley its amazing the names that we dont talk about anymore, like jeb bush and scott walker. Reporter those are the two candidates, probably the two to watch, in terms of those who need to make the pitch for why they should still be in the conversation. They need tomorrow to be the one people are talking about. This race is going to come down to donald trump and the alternative to donald trump. And both walker and bush can make the case that theyre governors, they know what to do in the job. But they have to give listeners something to hang on to, and so far in the first debate, anyway, they kind of faded into the background. Pelley john dickerson, well see you sunday on face the nation. Thanks, scott. Pelley today, a top pentagon official acknowledged that a key part of the president s plan to defeat isis is not working. The strategy is to use american air strikes and troops trained by the u. S. To roll back the islamic extremists controlling much of syria. Heres david martin. Reporter the plan called for a force of 12,000 Syrian Opposition fighters that, with the help of american air strikes, could take back territory from isis. Training began last spring at bases in turkey and jordan, and the first fighters were infiltrated into syria this summer. But when senator deb fischer asked general lloyd austin, commander of the war in iraq and syria, how they were doing, she got a shocking answer. Can you tell us what the total number of trained fighters remains . Its a small number, and the ones that are in the fight is is is were talking four or five. Is it still the goal to have about 12,000 of them there . At the pace were going, we wont reach the the goal that we had initially established for ourselves. Reporter next came senator kelley ayotte. This four or five u. S. Trained fighters, lets not kid ourselves. Thats a joke. Reporter then senator Clare Mccaskill asked the pentagons Christine Wormuth how many fighters were still in training. Its between 100 and 120. If we end up at the end of the year with us bragging about the difference between 100 and 120, its time for a new plan. I certainly dont mean to be bragging. The program is much smaller than we hoped. Reporter and likely to remain that way, scott. The pentagon insists its not giving up on the effort to train syrian fighters, but it will be drastically cut back to a fraction of the original plan. Pelley from 12,000 to four or five. David martin at the pentagon for us. David, thank you. Today, hungary resorted to tear gas and Water Cannons to force back refugee families. Many of them are fleeing the civil war in syria. Theyre trying to reach germany which will grant refuge, but hungary doesnt want to be the corridor for that. Tonight, the search goes on in southern utah for a hiker missing in a flash flood. At least six others were killed, and ben tracy is there. Reporter searchandrescue teams covered dozens of miles of rugged terrain in Zion National park. Do you expect at this point to find anyone alive . Were hopeful, but its not looking good. Reporter on monday, the group of seven was inside keyhole canyon, which is only three feet wide in some parts. Therese picard of the National Parks service. It is dark and it is cold. I can tell you even in july, its chilly. Reporter the canyon filled with water when massive flash floods hit southern utah. There goes the van oh, my goodness reporter the same storms washed away vehicles in a nearby town. 12 people, most of them children, died. A sixyearold boy is still missing. Couldnt really stand out in it for sure. You had to seek shelter. Reporter Anthony Bentley was hiking in zion when water started pouring off the massive mountains. There is little vegetation to slow a flood once the rain starts falling. How fast did that rain start coming . Its it started out as a pitapat, and over a couple of seconds it became torrential, yeah. Reporter park rangers say this group of hikers was warned of the potential for flash flooding before they headed out on monday. Scott, this is now the deadliest event to ever happen here at Zion National park. Pelley ben tracy in the canyon lands tonight. Ben, thank you. Today a body was found at the site of the wildfire in the Sierra Nevada foothills. Searchers are now looking for a victim of another fire north of san francisco. David begnaud is there. Reporter today, cadaver dogs were brought into the lake county disaster zone to search for bodies. Authorities tell us at least four people are unaccounted for and feared dead, including former San Jose Mercury newspaper reporter leonard neft. Brian martin is the lake county sheriff. It moved so fast in several cases people couldnt beat it. They couldnt beat it out of here. Reporter telephone lines and emergency Communication Systems have been burned. There is no water or power. Animals are left to roam helplessly. This is the worst disaster this county has ever seen. Reporter today, state officials were in the burn area surveying damage. Mark ghilarbucchi is the governors top emergency manager. This is equivalent, by, you know, by scope and scale to any major hurricane that would have hit the east coast. Reporter in the Anderson Springs neighborhood, there is nothing left. The dugan family lost their home just six months after the children lost their mother to cancer. Grandmother marsha conns. Was there insurance for the home where the kids lived . No. Reporter no. What do you do next . We dont know. Were here for a few days, and then we dont know. Reporter sevenyearold griffin, who cant grasp the gravity of the situation, would not let go of his teddy bear. Do you feel happy . Such innocence in the face of the disaster. Scott, right now rain and cooler temperatures are providing relief to firefighters, but it is expected to be warm and dry again tomorrow. Pelley david, thank you. Today police and federal agents broke up an International Ring that sold cheap but toxic synthetic marijuana. In two months, 2,300 people have ended up in Emergency Rooms in new york alone, and jim axelrod is investigating. Reporter in the last 24 hours, agents seized two warehouses full of synthetic drugs in the bronx, one of the largest raids ever. But with new york drug rings producing more than a quarter million packets of synthetic marijuana, todays bust is just a small dent in the problem. This is one of the brands that is kind of very popular right now among synthetic drug users. Reporter Eduardo Chavez is with the d. E. A. Over the last several years, our special testing labs have identified over 400 new synthetic drugs. Reporter 400 . Absolutely. Reporter known by names like k2 or spice, the synthetics are designed to mimic marijuana but with far more powerful effects. Oh i have had routine heroin users tell me that theyve tried spice one time and hated it, were so scared of it, that they would never try it again. Reporter the chemicals used to make the drugs are legally imported from china. Theyre sprayed on to groundup plants here, and then smoked. This is k2. Is it . Yeah. Reporter its cheap and easy to find. This was a bodega in brooklyn. Two of them . One, one 10. Reporter in the last year, theres been a 229 hike in calls to poison control centers. Emergency room doctor michael glatter. Some horrendous things can happen under the influence. Right. This can cause kidney failure. It can lead to heart attacks, strokes, seizures which dont stop which require a person to be put on a respirator. Reporter but theres an even more troubling threat, where the profits from the sales of these synthetic drugs may be going. Maybe 1,000. A lot of this money that is from the sales of spice is hitting countries in the middle east where we all know drugs many times fund terror. Reporter are you talking about storefronts that are operated by middle eastern owners that might be funneling the money directly back to terror groups . A lot of middle easternowned shops where our investigations have revealed cash deposits going to countries of conflict such as yemen and syria. Reporter sources at the Drug Enforcement agency say an increased commitment from china is the key to cutting down the amount of chemicals coming into the country. The d. E. A. Is hopeful the two countries can include this on the agenda for highlevel talks that could be held later this month. Pelley the president of china coming to washington later this month. Jim axelrod reporting tonight. Thank you. Mr. Stewart goes to washington. Well tell you why. Theres big news tonight from the top of the world. And, an International Flight is diverted because of a dog when the cbs evening news continues. Im caridee. Ive had moderate to Severe Plaque Psoriasis most of my life. But that hasnt stopped me from modeling. My doctor told me about stelara® it helps keep my skin clearer. With only 4 doses a year after 2 starter doses. Stelara® helps me be in season. Stelara® may lower your ability to fight infections and increase your risk of infections. Some serious infections require hospitalization. Before starting stelara® your doctor should test for tuberculosis. Stelara® may increase your risk of cancer. Always tell your doctor if you have any sign of infection, have had cancer, or if you develop any new skin growths. Do not take stelara® if you are allergic to stelara® or any of its ingredients. Alert your doctor of new or worsening problems including headaches, seizures, confusion and vision problems. These may be signs of a rare, potentially fatal brain condition. Serious allergic reactions can occur. Tell your doctor if you or anyone in your house needs or has recently received a vaccine. In a medical study, most stelara® patients saw at least 75 clearer skin and the majority were rated as cleared or minimal at 12 weeks. Stelara® helps keep my skin clearer. Ask your doctor about stelara®. Padvil pm gives you the healingu at nsleep you need, it. Helping you fall asleep and stay asleep so your body can heal as you rest. Advil pm. For a healing nights sleep. When your windshield needs trust safelite. Our exclusive trueseal Technology Means a strong reliable bond. At safelite we stand behind our work. Because the ones you love, sit behind it. softly safelite repair, safelite replace that reminds me. Anyone have occasional constipation, diarrhea. Gas, bloating . Yes one Phillips Colon Health probiotic cap each day helps defend against occasional digestive issues. With three types of good bacteria. Live the regular life. Phillips. Pelley former daily show host jon stewart showed up today in washington, long the home of some of his favorite targets but no one was laughing today. Heres jeff pegues. Reporter who do you blame for this . Whose lawn am i on . Reporter the comedian was there to Lobby Congress to extend the Program Providing medical care to some 70,000 emergency and cleanup workers from the 9 11 attack sites. Everything that they say about this country, about how much they love it, about how much they believe in it is thats all symbolism as far as im concerned, if they cant take care of the people that took care of us. Reporter stewart featured the issue on some of his shows, like this one in 2010. Were patriots to this country. Reporter which included john devlin, a crane operator diagnosed with throat cancer. Devlin died in 2014. 56yearold firefighter robert tilearcil, also came to capitol hill today. He said he got cancer from breathing bad air at ground zero. Our only protection was our face piece and our face piece was only good for 15 minutes. Reporter so you were breathing in the toxic air. We were breathing in the toxic air. Reporter stewart said the workers should not have to go begging for money. And theyre being dragged down to washington hat in hand to ask for medicine. Its embarrassing. Im embarrassed as an american that that this has to happen. Reporter funding was a major Sticking Point the first time around, and it will be an issue once again as this deadline approaches. Scott, supporters of the legislation say they are still trying to determine how much funding would cost on a permanent basis. Pelley jeff, thank you very much. Three american heroes are about to be honored by the president for stopping an attack on a train. Thats next. When youre not confident your companys data is secure, the possibility of a breach can quickly become the only thing you think about. Thats where at t can help. At at t we monitor our Network Traffic so we can see things others cant. Mitigating risks across your business. Leaving you free to focus on what matters most. Ththeres no easy, way to do your job when youre sick. Tough symptoms need alkaseltzer plus cold cough its four cold symptom fighters put you back in control. Stay unstoppable. Alkaseltzer plus. I accept im not the rower i used to be. I even accept i have a higher risk of stroke due to afib, a type of irregular heartbeat not caused by a heart valve problem. But i