Originally Posted by
Dan72
Expect not locking baggage makes sense on many routings, but suspect it depends on where you travel. There are still large swathes of the world's airports that don't offer the reassurance of CCTV monitoring or proper supervision. Locks also help prevent items being placed in your bags.
Agreed for some places more baggage security is needed, wrapping bags can make them more tamper-evident.
Most bags with zips can be opened with a pen even if locked.