Luggage locks can help keep your possessions from going astray. But they can turn on you, too, if you forget the combination.

The combination padlock I used in this video is from Master Lock, but there are other companies that make them too. The components of a combination padlock include: the casing, shackle ...

However, agents are able to open a TSA-approved lock with a master key. Unfortunately, TSA locks are not entirely tamperproof. The blueprints for some master keys have been circulated on the Web ...