TSA's two-letter code is AX. No idea why. Just take the fraction of a second it takes to type one more letter and keep calling it TSA.
And almost no one from TSA defends it. As for the others, probably has something to do with "it may be a bad airline, but it's my bad airline dang it." mentality. Best advice: don't worry about it.
And almost no one from TSA defends it. As for the others, probably has something to do with "it may be a bad airline, but it's my bad airline dang it." mentality. Best advice: don't worry about it.