The TSA works with two companies, Safe Skies and Travel Sentry, that provide them with universal keys that allow agents to open the lock without cutting through it.

If a suitcase secured with an ordinary lock is targeted for examination, the TSA will cut open and destroy the lock. However, agents are able to open a TSA-approved lock with a master key.

Images of the TSA's master luggage keys have been published online, meaning that anyone with a 3D printer can make their own.

Why does nobody bring up TSA locks/keys when the FBI director recommends we install backdoors in all our routers for crime prevention purposes?

The TSA works with two companies, Safe Skies and Travel Sentry, that provide them with universal keys that allow agents to open the lock without cutting through it.