ABC News reports that “the FBI on Sunday issued the strongest warning to date about possible attacks by the ISIS terrorist group against the U.S. military inside the homeland, officials tell ABC News.”  

“In a joint intelligence bulletin issued overnight by the FBI with the Department of Homeland Security, officials strongly urged those who serve in uniform to scrub their social media accounts of anything that might bring unwanted attention from “violent extremists” or would help the extremists learn individual service members’ identities.”  

“‘The FBI and DHS recommend that current and former members of the military review their online social media accounts for any information that might serve to attract the attention of ISIL [ISIS] and its supporters,’ the federal bulletin sent to law enforcement agencies said, advising that troops ‘routinely exercise operational security in their interactions online.'”