Please choose the correct ending to complete the given sentence: Travel: [header] How to get a known traveler number [title] Go for tsa precheck if you only travel within the united states. [step] If you're a lawful u.s. citizen or permanent resident and you just travel within the united states, this may be the program for you. Get your ktn through tsa precheck so that you don't have to bother with getting a passport.

Ending1: [title] Ask your visa office for a copy of the state and country code. [step] Upon locating the states and countries tab, you will see a link on a section that says " apply here. Ending2: [title] Go for a good valid name if you don't already have one. [step] Your name should be a valid name, made out of common american letters. Ending3: [title] Pre-enroll for tsa precheck online. [step] In order to start the application process, visit. Ending4: [substeps] If you're traveling within the united states, you can apply online or request one in person. [title] Search for the name of the person you're looking for by using the tsa website.

Answer format: ending1/ending2/ending3/ending4