Its the start of a military revolution. Now its looking at me. Martin machines operating on their own. It recognized you instantly. Martin using Artificial Intelligence to make decisions faster than humans, and raising questions the pentagon is only beginning to grapple with. So, if the machines better, why not let it make the decision . This goes to the ethics of the question of whether or not you allow a machine to take a human life without the intervention of a human. Whitaker tell me about the night you got lost. What do you remember . Its a memory thats been within me for such a long time. Whitaker saroo was just five years old when he got lost, and, as depicted in the movie, he ended up on a train that took him a thousand miles away with no way to know how to get home. Its a ghost train. No ones on the train. And. Whitaker and the train is hurtling down the tracks. Its hurtling down the tracks. I was locked in the carriage. I couldnt open it. Whitaker and youre five years old. And im five years old. Im steve kroft. Im lesley stahl. Im bill whitaker. Im Anderson Cooper. Im david martin. Im scott pelley. Those stories, tonight on 60 minutes. When i feel controlled by frequent, unpredictable abdominal pain or discomfort and diarrhea. I tried Lifestyle Changes and overthecounter treatments, but my symptoms keep coming back. It turns out i have Irritable Bowel Syndrome with diarrhea, or ibsd. A condition thats really frustrating. Thats why i talked to my doctor about viberzi. A different way to treat ibsd. Viberzi is a Prescription Medication you take every day that helps proactively manage both abdominal pain and diarrhea at the same time. So i can stay ahead of my symptoms. Viberzi can cause new or worsening abdominal pain. Do not take viberzi if you have no gallbladder, have pancreas or severe liver problems, problems with alcohol abuse, longlasting or severe constipation, or a bowel or gallbladder blockage. 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Is back at outback. Starting at 15. 99 for a limited time, were pairing our signature steaks with a mouthwatering, steamed lobster tail. Starting at only 15. 99. Its time to get back to outback. Stahl isis has claimed responsibility for this past thursdays deadly terror attack in barcelona, spain, that killed and wounded people from at least 34 countries, including the United States. This year alone, the Spanish Police have arrested more than 20 people with links to isis. Here in america, 100 people have been arrested for isisrelated crimes over the last three years. The f. B. I. Devotes significant resources to identifying potential terrorists and sometimes spends years tracking them. The terror attack in garland, texas, two years ago was the first claimed by isis on u. S. Soil. Its mostly forgotten because the two terrorists were killed by local cops before they managed to murder anyone. As Anderson Cooper first reported in march, we were surprised to discover just how close the f. B. I. Was to one of the terrorists. Not only had the f. B. I. Been monitoring him for years, there was an undercover agent right behind him when the first shots were fired. Cooper the target of the attack was an event taking place in this Conference Center on may 3, 2015. A selfdescribed free speech advocate named Pamela Geller was holding a provocative contest, offering a cashprize for the best drawing of the prophet muhammad, whose depiction is considered sacrilege by some muslims. Security outside was heavy. There were dozens of police, a swat team, and snipers. More than 100 people were gathered inside and the event was ending when two terrorists drove up to a checkpoint manned by a Garland Police officer and a School Security guard. This grainy image shows both Law Enforcement personnel standing next to an Unmarked Police car seconds before the attack. Bruce joiner, the security guard, was unarmed. Joiner its like they pull up, stop, and the doors open. Cooper do you remember seeing the weapon . Joiner oh, yeah. Definitely saw their weapon. And thats when i locked onto his face cause hes got this smile. Cooper he was literally smiling . Joiner yeah, like, i got you. I got you. gunshots cooper the two terrorists opened fire with automatic rifles. Joiner dove for cover, but was shot in the leg. Officer greg stevens returned fire with his handgun. Police nearby ran toward the scene. And right here bleep just started shooting at this convention cooper when this video was recorded by a passerby, both terrorists had been mortally wounded by officer stevens and were lying on the ground next to their car. They still shooting, man cooper a swat team shot them both in the head. Joiner because they kept moving and they werent sure there were explosives involved they had to shoot them. Cooper how quick did all of this happen . Joiner oh, its a matter of seconds. I would say 20, 30 seconds. Its very quick. Cooper the next day as the fbi picked through the crime scene, the evidence showed Garland Police had prevented a massacre. The terrorists brought six guns, hundreds of rounds of ammunition, bulletproof and tactical vests, and xeroxed copies of the black flag of isis. They were identified as 31year old Elton Simpson and 34year old nadir soofi. Just hours before the attack they had sent this tweet pledging allegiance to isis. But simpson was already well known to the f. B. I. He grew up in the suburbs of chicago, and moved to phoenix, arizona in middle school. He briefly played College Basketball before dropping out and converting to islam when he was 20. According to leaders of the phoenix mosque he attended, simpson was wellliked and soft spoken. Shami he was always asking questions, attending lectures. Cooper usama shami is president of the Islamic Community center of phoenix. People here thought so much of the young muslim convert, who took the name ibrahim, that he was included in the mosques promotional video in 2007. When you come together and you pray five times a day with the brothers, and youre reminded about the hereafter. Cooper but at the time of this interview, simpson had already become interested in radical islam, and the phoenix f. B. I. , which was investigating one of his friends, hired an informant, a sudanese refugee named dabla deng, to check simpson out. Cooper there are informants inside the mosque . Shami yeah. I mean, the whole case with Elton Simpson was with an informant, that he was befriending elton and taping his conversations. Cooper dabla deng spent three years pretending to be simpsons friend, and was paid 132,000 by the f. B. I. He taped more than 1,500 hours of their conversations and finally recorded him talking about traveling overseas to wage jihad. Simpson lied to the f. B. I. About it and got three years probation. Shami when he found out that this guy was spying on him, and taping him, and then finding out that the government was doing that, i think something clicked in him. And the mosque, we couldnt do anything, because we dont know what he did. Cooper he felt that the mosque had abandoned him . Shami yes. And he felt that a lot of people had abandoned him. And thats why he stopped coming to the mosque. Cooper he moved into this phoenix apartment complex with nadir soofi, whom he knew from the mosque. Soofi had just had a bitter breakup, and the pizza parlor he owned was going out of business. It was here in this apartment that simpson and soofi began closely following the rise of isis, reaching out to their supporters online and acquiring weapons for a terrorist attack. Hughes simpson and soofi knew what they were getting into, and i think they likely knew they were going to die. Cooper Seamus Hughes tracks the online activities of isis sympathizers in the u. S. He served at the National Counter terrorism center, and is currently Deputy Director of George Washington universitys program on extremism, where he also trains f. B. I. Agents on how to identify american jihadis. Why is the garland attack so significant . Hughes the garland attack is essentially the first opening salvo when it comes to attacks on the homeland. Cooper attacks in the United States . Hughes attacks in the United States. These lowlevel attacks by ones and twos of people who are drawn to the ideology and decide to act. You got to make sense of it all. So what you do is, you bring it all together and put it on a board and say whos connected to who. Cooper using an Old FashionedLaw Enforcement tool, hughes maps out isis online tentacles into the United States. Hughes so you have the two attackers, soofi and simpson. Theyre also talking to mohammed miski, whos an isis recruiter in somalia. Cooper this is somebody in somalia who theyre talking to online. Hughes uhhuh. Yep. Through an encrypted app, surespot. Theyre also talking to junaid hussein. Cooper and hes in raqqa . Hughes hes in raqqa. Cooper raqqa is isiss stronghold in syria. Hughes calls Junaid Hussain an isis rock star, a british citizen who communicated online with englishspeaking recruits worldwide. He was killed in a u. S. Drone strike a year and a half ago. Miski, an american living in somalia, tweeted this link about the draw muhammad contest, in garland, texas, and direct messaged Elton Simpson, urging him to attack it. Hughes the most interesting part about this is were in a hybrid time, right. Before, we used to be worried about these Network Attacks think of 9 11 with the hijackers training for years and then coming over here. And then, we had lone actor attacks, individuals who were kind of drawn to this and decided to act. Now, were in this weird moment in between, where you have a number of individuals in raqqa, reaching out to americans in ohio, new york, and other places and saying so heres the knife you should use. Heres the address of the local u. S. Military officer and do what you can. Cooper do you think Elton Simpson would have launched this attack if it wasnt for people in isis overseas who were online whispering in his ear . Hughes i think the folks whispering in his ear was a big part of it. Cooper the f. B. I. Closed the case on Elton Simpson in 2014, only to reopen it several weeks before the attack because of statements he made on social media. Hughes it speaks to a larger problem the f. B. I. Has, which is, you have an individual who pops into your radar in 2006, but doesnt commit an attack until 2015. So do you want the f. B. I. To watch this individual for nine years . Cooper after the attack, phoenix f. B. I. Agents became convinced the two men hadnt acted alone, and began investigating Elton Simpsons friends. They arrested this man, abdul malik abdulkareem, a 43year old convert to islam who grew up in philadelphia, and accused him of funding the attack, as well as training and encouraging simpson and soofi. Witnesses at abdulkareems trial testified the three men watched isis execution videos together, and discussed attacking a military base or the 2015 super bowl in glendale, arizona. Abdulkareem denied taking part in any discussions about a terror attack, and says he rejected his friends growing radicalization. He was found guilty on multiple counts and sentenced to 30 years in prison. But his attorney, dan maynard, continued to investigate, and uncovered new evidence the f. B. I. Was much closer to the garland attack than anyone realized. After the trial, you discovered that the government knew a lot more about the garland attack than they had let on . Maynard thats right. Yeah. After the trial, we found out that they had had an undercover agent who had been texting with simpson less than three weeks before the attack to him tear up texas. Which to me was an encouragement to simpson. Cooper the man hes talking about was a special agent of the f. B. I. , working undercover posing as an islamic radical. The government sent attorney dan maynard 60 pages of declassified encrypted messages between the agent and Elton Simpson, and argued tear up texas was not an incitement. But simpsons response was incriminating, referring to the attack against cartoonists at the french magazine Charlie Hebdo bro, you dont have to say that. He wrote you know what happened in paris. So that goes without saying. No need to be direct. But it turns out the undercover agent did more than just communicate online with Elton Simpson. In an affidavit filed in another case, the government disclosed that the f. B. I. Undercover agent had actually traveled to garland, texas, and was present at the event. Maynard i was shocked. I mean, i was shocked that the government hadnt turned this over. I wanted to know, when did he get there, why was he there . Cooper and this past november, maynard was given another batch of documents by the government, revealing the Biggest Surprise of all. The undercover agent was in a car directly behind Elton Simpson and nadir soofi when they started shooting. This cell phone photo of School Security guard bruce joiner and Police Officer greg stevens was taken by the undercover agent seconds before the attack. The idea that hes taking photograph of the two people who happen to be attacked laughs moments before theyre attacked. Maynard its stunning. Cooper i mean, talk about being in the right or the wrong place at the right or the wrong time. Maynard the idea that hes right there 30 seconds before the attack happens is just incredible to me. Cooper what would you want to ask the undercover agent . Maynard i would love to ask the undercover agent are these the only communications that you had with simpson . Did you have more communications with simpson . How is it that you ended up coming to garland, texas . Why are you even there . Cooper we wanted to ask the f. B. I. Those same questions. But the bureau would not agree to an interview. All the f. B. I. Would give us was this email statement. It reads there was no advance knowledge of a plot to attack the cartoon drawing contest in garland, texas. If youre wondering what happened to the f. B. I. s undercover agent, he fled the scene, but was stopped at gunpoint by Garland Police. This is video of him in handcuffs, recorded by a local news crew. Weve blurred his face to protect his identity. Maynard i cant tell you whether the f. B. I. Knew the attack was going to occur. I dont like to think that they let it occur. But it is shocking to me that an undercover agent sees fellas jumping out of a car. And he drives on. I find that shocking. Cooper that he didnt try to stop. Maynard he didnt try to stop them. Or he didnt do something. I mean, hes an agent, for gosh sakes. Cooper if this attack had gone a different way, and lots of people had been killed, would the fact that an undercover f. B. I. Agent was on the scene have become essentially a scandal . Hughes it would have been a bigger story. I think you would have seen congressional investigations and things like that. Lucky for the f. B. I. And for the participants in the event, you know, here in texas, you know, everyones a good shot there. Cooper the f. B. I. s actions around this foiled attack offer a rare glimpse into the complexities faced by those fighting homegrown extremism. Today the battle often begins online, where identifying terrorists can be the difference between a massacre, and the one that never occurred in garland, texas. I mean, people brag about stuff. People talk big. One of the difficulties for the f. B. I. Is trying to figure out whos just talking and who actually may execute an attack. Hughes thats the hardest part when you talk about this, right. Theres a lot of guys who talk about how great isis is. Its very hard to tell when someone crosses that line. And in most of the cases, you see the f. B. I. Has some touch point with those individuals beforehand. There had been an assessment, a preliminary investigation or a full investigation. Its just very hard to know when somebody decides to jump. Preponderance cbs money watch update. Youre in charge. Quijano good evening. Lowes, gain stop and ultraa beauty are among the Companies Reporting earnings. The v. W. Van is coming back in 2022, and it will be electric, and tomorrows eclipse is expected the cast a 700 million shadow of lost productivity. Im elaine quijano, cbs news. With some big news about type 2 diabetes. You have type 2 diabetes, right . 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