The head of security for TSA, Kelly Hoggan, has been removed from his position after a hearing about the agency's management, the House Oversight Committee says. In an email obtained from the TSA, Administrator Peter Neffenger announced a series of leadership changes on Monday. The position that Hoggan had held since 2013 will temporarily be taken by Darby LaJoye, who is currently deputy assistant administrator. The changes come as fliers complain about long, slow airport screening lines. That problem "has many parts," as NPR's Brian Naylor has reported: More people are traveling, and there are fewer screeners. The May 12...