An airline ticket agent who checked in hijacker Mohamed Atta the morning of the Sept. 11, 2001, attacks says he had a feeling he was looking at an Arab terrorist but gave in to political correctness and let him through. Michael Tuohey, who works for U.S. Airways in Portland, Maine, told his story recently to Michael Smerconish, Philadelphia Daily News columnist and author of "Flying Blind: How Political Correctness Continues to Compromise Airline Safety Post-9/11." Touhey now kicks himself for not acting, but Smerconish says if he had, the federal government probably would have punished him, noting three major airlines...