In my experience, the TSA has difficulty distinguishing curves from angles. It is perhaps permissible that an X-ray machine lacks the appropriate resolution, bu

In my experience, the TSA has difficulty distinguishing curves from angles. It is perhaps permissible that an X-ray machine lacks the appropriate resolution, but the human eye and brain are clearly capable of determining curved-tipped scissors from sharp-tipped scissors. Not so the federal security officers who beggar that species classification, and must query and ponder whenever they encounter examples of the former among my possessions.