Do not lock your checked bags. (They may have to be checked by security officials for your safety.)
If you are carrying a computer when you check in for your flight, take it out of its case when you approach the security checkpoint.
Do not wrap gifts. They may have to be opened for a security inspection.
Pack smart. Put any camera film in your carry-on baggage. Put your personal items in clear plastic bags so screeners can see them without having to touch them.
Avoid wearing or carrying metallic objects in your clothes to avoid setting off checkpoint alarms.
Arrive early for your flight. Check your airline for details.
Go online at www.TSATravelTips.us to find more tips on airport" security in the U.S., including what you can and cannot carry on the plane.