Hiding a weapon inside a walking cane -- it's one of the oldest tricks in the James Bond playbook, and it's apparently more common than you think.
Screeners at Dulles International Airport stopped a woman Monday after an X-ray of a cane she was carrying revealed a concealed sword.
The Transportation Security Administration said the woman had no idea that her walking stick was also a weapon.
A spokesperson it's not uncommon for people to unwittingly carry canes that conceal weapons. The agency sent out an advisory Wednesday suggesting passengers with canes try to unscrew the top before heading out to the airport, just in case.
In Monday's incident, the woman was allowed to board her flight -- without the cane -- and did not face charges.