There's an earnest, high-school debating tone to the ubiquitous discussions of airport security. It has many worthy subjects like, Full body scanners: Will they work? High moral concerns such as The invasion of privacy. There's Human rights versus racial profiling, which would be a better topic if it hadn't already been a reality for males of a certain age and hue since 9/11. There's room for witty replies, like Billy Connolly's, who'd like to say, when asked if he packed his own bags: "No, no, a big Arab guy in a hotel -- a nice big man, named Mohammed, who had a flying licence -- packed it for me."