Thad (02.16.11, 12:13 PM): Yes, that is the sound of freedom. Possibly one of the last sounds Mark heard.
Thanks for the post, class of '99.
Class of '99 (11.29.10, 5:53 PM): As I was standing there watching this, a gentlemen of my senior asked what that was the sound of. I thought he was talking about the jet engines because he had worked all around them. I said no, what? The sound of freedom. I was speechless with a lump in my throat and tears in my eyes