The Transportation Security Administration has launched a new program allowing eligible TSA PreCheck members who are not flying to go through security and enter secure areas to greet arriving passengers or say goodbye to departing loved ones at the gate at some U.S. airports.Under the program, eligible TSA PreCheck members without tickets can pass through security and enter gate areas, bringing back access that was largely restricted after the Sept. 11, 2001, terrorist attacks that led to heightened airport security measures.The move would bring back the emotional send-offs and gate-side reuni...