Perhaps the reasons given in the article were not compelling on their own, but the author's point was that the TSA overstated their case. Researchers have poin

Perhaps the reasons given in the article were not compelling on their own, but the author's point was that the TSA overstated their case. Researchers have pointed out that international pilots and stewardesses may already receive more cosmic radiation than may be safe due to high altitudes and long duration. This is why they're allowed to skip the scan. Why shouldn't frequent international business travelers receive the same treatment? Also, all machines have a percentage of possibility of breaking down or misbehaving. Do we want to subject someone to the possibility of being irradiated by a damaged scanner when the odds are greater than harm from terrorism?