You can also secure baggage with plastic tie wraps used by electricians. TSA can still snip them and search through bags, but you don't have to go out and purchase approved locks. I use brightly colored wraps which aid in Identifying luggage at baggage claim. It's also a quick indicator if my bag has been searched as they are not likley to have the neon organe or green i use when they replace the tie wraps, which they are required to do.