I'm not d/Deaf, but FWIW I have friends who are, and I have a disorder that causes episodic mutism, so I rely on ASL (or, with the signing impaired, writing) pretty frequently to communicate.
I've also done some ASL music & poetry interpretation videos on YouTube.
On the mutism vs airlines & TSA sides of things:
http://www.flyertalk.com/forum/check...sa-vs-ada.html
http://www.flyertalk.com/forum/pract...it-vs-tsa.html
http://www.flyertalk.com/forum/pract...screening.html