TSA weighs in on bombs . Annual Aspen Security Summit brings together top national security leaders . Discussion tends to trend toward current events . The administrator says that is more of a concern than shoot - downs . There may be a less - publicized reason that 2009 underwear bomb did n't detonate .
Annual Aspen Security Summit brings together top national security leaders . Discussion tends to trend toward current events . The administrator says that is more of a concern than shoot - downs . There may be a less - publicized reason that 2009 underwear bomb did n't detonate .