For roughly 30 years the FBI has virtually ignored a system meant to help cops track the behavioral patterns of violent criminals.

An informant who worked with the FBI for years to take down Subway’s Jared Fogle opened up about his arrest on Thursday. “I’m numb. I’m shocked. I’m relieved most of all,” Rochelle Herman-Walrond told ABC7. She initially thought Fogle would be charged only for child pornography but wasn’t surprised when he was also charged for “sex acts with children.”

Fault Lines investigates the legacy of flawed forensics at the FBI and how it continues to affect many lives today.

The Federal Bureau of Investigation has begun an inquiry into the practices of booming daily fantasy sports websites after players of the games and lawmakers made allegations of predatory tactics and questioned the use of insider information, according to fantasy players who said they had been contacted by investigators. The F.B.I. began contacting several prominent competitors in the contests, the players said, shortly after an employee of DraftKings...

Remember when people put that “RTs ≠ endorsements” disclaimer in their Twitter bios, like that would offer some form of protection from the being associated with what they retweeted? Well, a retweet can be seen as an endorsement. It can also apparently be used as evidence that you’re trying to join ISIS.

Since Carnegie Mellon's researchers pulled their talk on cracking the protections of the anonymity software Tor from the schedule of the Black Hat security conference in 2014, the university has been nearly silent about rumors that their technique ended up in the FBI’s hands. Now the university has finally spoken up—to deny the Tor Project’s claim that the FBI paid Carnegie Mellon for their Tor-breaking method.

McDavid served nine years in prison before prosecutors finally disclosed key evidence suggesting the informant had enticed him with the prospect of romance. By Trevor Aaronson and Katie Galloway.

The FBI can compel companies and individuals to turn over vast sums of personal data without a warrant, it has been revealed for the first time. In a case that's lasted more than a decade, a court filing released Monday showed how the FBI used secret interpretations to determine the scope of national security letters (NSLs). Nicholas Merrill, founder of internet provider Calyx Internet Access, who brought the 11-year-old case to court after his company was...

The National Security Letter (NSL) is a potent surveillance tool that allows the government to acquire a wide swath of private information—all without a warrant. Federal investigators issue tens of thousands of them each year to banks, ISPs, car dealers, insurance companies, doctors, and you name it. The letters don't need a judge's signature and come with a gag to the recipient, forbidding the disclosure of the NSL to the public or the target.

The latest on the mass shooting in San Bernardino, California (all times local): 10:35 a.m. President Barack Obama says this week's deadly California shootings were "an act of terror" carried out by attackers who were possibly radicalized to commit it. The president's comments came during his weekly radio and Internet address Saturday, a day after the FBI said it was investigating Wednesday's shootings as "an act of terrorism."

The cleric acting as spokesman for the San Bernardino mosque where terrorist Syed Rizwan Farook worshipped claims he barely knew Farook and didn’t know his terrorist wife at all. But phone records and other evidence uncovered by federal investigators cast suspicion on his story. The FBI has questioned the cleric, Roshan Zamir Abbassi, about his phone communications with Farook — including a flurry of at least 38 messages over a two-week span in June...

It was the bloodiest terrorist attack in the United States in decades, New York City would see nothing like it again until 9/11. Last week marked the 40th anniversary of one of the worst terrorist attacks in American history. The bombing of New York’s LaGuardia Airport on December 29, 1975 killed 11 innocents and maimed 74 more, many of them gravely. Few noticed the anniversary, however, perhaps because this appalling crime has never been solved and remains a cold case.

It was more than 10 years ago that Mary Lou Randour realized she couldn’t answer what should have been a simple question: Was cruelty against animals on the rise or in decline? Randour, a psychologist who switched careers to devote herself full time to animal rights advocacy, found there was no one keeping track of animal-abuse crimes. Even the most egregious cases, like dogfighting, fell under the category of “other” when local police agencies...

In a move seen as a big win for animal rights activists, the FBI has added animal cruelty to its list of Class A felonies, alongside homicide and arson. Cases of animal cruelty fall into four categories — neglect; intentional abuse and torture; organized abuse, such as cock and dog fighting; and sexual abuse of animals — and the agency is now monitoring them as it does other serious crimes. Starting January 1, data is being entered into the National Incident-Based Reporting...

For nearly two weeks last year, the FBI operated what it described as one of the Internet’s largest child pornography websites, allowing users to download thousands of illicit images and videos from a government site in the Washington suburbs. The operation — whose details remain largely secret — was at least the third time in recent years that FBI agents took control of a child pornography site but left it online in an attempt to catch users who officials said...

At 11 a.m. on Dec. 2, some 60 miles east of Los Angeles, Syed Rizwan Farook and his wife, Tashfeen Malik, stormed into a Christmas party for employees of the San Bernardino county public-health department, where Farook worked. Wearing military-style clothing and black masks, the couple unleashed a barrage of bullets. They killed 14 people, and minutes after the attack, Malik pledged an oath of allegiance to Islamic State on her Facebook page.

Joel Barajas was the only Crystal City council member to show up at the office Friday. That’s because everyone else he works with is facing felony charges. Five top officials in the Texas city were arrested Thursday under a federal indictment accusing them of taking tens of thousands of dollars in bribes and helping the operator of an illegal gambling operation who went by the nickname “Mr. T.”

The FBI says it hasn't found any rigged explosives or booby traps at the national wildlife refuge in Oregon that had been seized by an armed group.

The months-long series of hacks and pranks by a group of alleged teenage hackers on the US government and its high-level officials might have finally come to an end. Police authorities in the UK, working in conjunction with the FBI, have arrested a teenager who they believe is behind the cyberattacks that started last year, when a group of hackers broke into the AOL email account of CIA Director John Brennan. Officials have not released the identity...

The exclusive account of how a small band of federal agents and an outsized corrupt official brought down the sports world's biggest governing body. Chuck Blazer looked out the window of his $18,000-a-month Trump Tower apartment, with its view of New York's Central Park. Most tourists on Fifth Avenue below could only dream of his kind of high-rise life. But after years of lavish excess, he was no longer fixated on the trappings of his success.