Just wanted to thank everyone for their responses. Quite fascinating
stuff here. Thanks again.

Also, I was watching United 93 and they kept using the term "squawk".
I looked it up in a few resources mentioned but since I have no
aviation experience couldn't quite grasp the meaning. What exactly is
a squawk and what is it's function?

And you can listen to this online!!??? Awesome. anyone know of some of
the better sites?

T