Mike Ross wrote:
snip

So any discrimination against permanent residents in flight training
would seem to me to violate the 'equal protection' clause. I presume
there's a missing 'or' - 'proof of US citizenship OR permanent
residence'. If it's a security thing... well to get a green card
you're thoroughly checked out - fingerprints, FBI, background checks
etc...

Now you're confusing the TSA with an agency that makes regulations that
actually make sense. No, it's not missing an "or"...the rule
specifically stays that permanent residents are included in this.

Here's a link.

http://www.aopa.org/tsa_rule/
http://www.aopa.org/tsa_rule/#aliens

Please don't let this scare you away from learning to fly. Which I
guess is easy for me to say, since it's basically run me out of the
freelance CFI business.