From USA TODAY's Airport check-in column: On average, 2 guns are discovered a day at airport security checkpoints countrywide, the transport Security Administration says.
"From time to time, things show up at airports that reason us to scratch our heads," the organization says in an entry last week on its blog, which was prompted by 10 guns being found on Aug. 3.

Traveler’s most ordinary response is that they had no knowledge that the gun was in the bag, it says. "One man even threw his wife below the bus and claimed she must have left it in there when she was packing his bag."