When an undercover TSA security team tested jetBlue staff at Charlotte airport, they were allegedly able to walk up to a ticket counter, tell the agent that they really needed a package to get to Boston that day, hand over $100 in cash, and get the package labeled for the next flight out.[gadling.com]

Also:

The government-issued weapon was in a backpack that was picked up by mistake by a passenger after Michael Connery put it down while he chatted with another pilot.[dailymail.co.uk]