I also got a kick of crowds cheering at WTC. That site has been so much about memorials, focusing on the past, and mourning of the dead for such a long time that watching something like people cheering in the streets can't help but make you feel up-lifted just by virtue of its sheer enthusiasm.
But yeah, also, the covert way this has all been handled gave me a lot of immediate doubt too (even the DNA reports on the news have evidence only from "unnamed sources"). Not being a downer--just saying, yeah, there's doubts we may as well acknowledge. And the potential effects of this are also probably why Obama put intelligence units on high alert as soon as it happened.
But again, I'm just happy seeing the enthusiasm and really hoping it is true, so I'm riding with that also.

I'm sure we'll be seeing video any day now. But then, I've also seen a lot of videos of UFO landings.