Appearing on CNN's The Situation Room with Wolf Blitzer on Monday, U.S. Sen. Rand Paul, R-Ky., explained his clash with Transportation Security Administration in Nashville on Monday, and once again criticized the federal agency's security policies.Kentucky's junior senator triggered the full-body scanner, but refused a pat down that resulted in him being escorted out of the gate area by local police. During the interview, Paul told Blitzer two unnamed TSA agents told him the scanners were "rigged" in order to allow for a random search."And I didn't realize that until today," Paul told CNN. "The screener goes off one time, and they finally let me go through it an hour later and then the screener doesn't go off. That's because I must have been part of a random pat down and wasn't told that initially."Watch:In a statement, TSA denied any false positives are used to allow for random searches.