Nine of the 10 employees have been arrested in the undercover operation at Dallas/Ft. Worth International Airport, FBI officials said at a press conference in Texas on Tuesday. One had not yet ...

Justin Harris Vinson was sentenced to 15 years in federal prison for distributing methamphetamine on behalf of a Mexican drug ...

In a never-before-released video, FBI agents posing as documentary filmmakers can be seen running an undercover operation to investigate a Nevada ranching family whose fight with the federal ...

The good news is “we found that the FBI is directing its undercover operations resources to the highest priority threats,” Inspector General Michael Horowitz said in a statement.

Justice Department Inspector General Michael Horowitz said the FBI’s national security undercover operations are so disorganized, the bureau was unable to say with certainty the current number ...

The undercover operation has been alluded to in previous court filings, but it was detailed in federal court Wednesday when FBI Special Agent Charles Johnson testified as a government witness in ...

In sting operation last July, undercover FBI agents gained access to a hotel suite by disabling the hotel’s Internet, and then posing as Internet repair technicians. Now one of the suspects who ...

"Tamer Elnoury is one of dozens of cover names that he's used in his job working undercover ... FBI, doing terrorism cases, covering al Qaeda and ISIS" with the FBI's National Security Covert ...

Holbrook ran the undercover operation that led to Sittenfeld's arrest ... and phone calls between Chinedum Ndukwe, a few undercover FBI agents and Sittenfeld. Many of those conversations centered ...