FTA: ""Polygraph exams have long been a routine tool used inside intelligence agencies, including DHS, as part of security clearances, job applications, and certain investigations. But under DHS Kristi Noem's direction, they have been used to search for leaks of information that Noem and her top deputies consider disloyal or embarrassing. The information the employees are accused of leaking often isn't classified. The exams are being administered by a little-known office inside the TSA, the part of DHS commonly known for screening passengers and baggage at airports." Link