According to Plofchan, Caldwell is a decorated Navy veteran who has held “Top Secret” security clearance since 1979 and served in a senior position in the FBI. And national security experts told VICE News that some items on his record don’t add up. “Turn on gas.”It’s not unusual for militia members to fudge their military or national security credentials for clout. It makes sense that Caldwell held Top Secret security clearance at least at one point in his career. “For Top Secret, the review is every five years,” Bradley Moss, a national security lawyer, explained about security clearances.