Was ist der Unterschied zwischen einem Redress Code und einer Known Traveller Number?

Hier wird das alles erklärt:

https://www.uponarriving.com/redress-number/

Redress:

In other words, the meaning of a redress number is to allow TSA or other agencies to see that you’re not the threat that they thought you were and it’s commonly used for those unlucky people who share names with individuals who are required to undergo additional security screening or are on no-fly lists created by the Terrorist Screening Center (TSC).

Known Traveler Number:

A Known Traveler Number, also called your “KTN,” is a 9-digit number used to link your TSA Pre-Check enrollment to your travel itinerary. This is the same number used for other trusted traveler programs, such as Global Entry, NEXUS, and SENTRI. However, for these latter programs, this number is known as your “PASSID.”