Bruce Schneier’s take:
"This is just stupid," he said. "There's no other way to explain it. Someone saw these Arabic-language cards and just freaked. It should have taken TSA 15 seconds." The problem, he said, is that there is no cost to the security agent for doing the wrong thing. "If I detain someone and he's not a terrorist, nothing happens to me. I'm probably praised. If I let him go and he is, my career is over. The TSA incentive is to overreact. Terrorism can't do this to us. I think only we can do this to ourselves."