Last Saturday, Kahler Nygard took a Spirit Airlines flight to Denver to visit with friends. When he departed from Minneapolis-St. Paul International Airport, Transportation Security Administration agents patted him down and allowed him to board his flight. When the plane landed, he was singled out and ordered to exit before the other passengers. After he exited the aircraft, TSA agents approached Nygard and demanded that he go through an additional pat-down and a screening of his luggage for explosive materials. He had already arrived safely at his destination in Denver and simply wanted to leave the airport. After an argument,...