As were the boxes on 9/11, but those were allegedly destroyed in the fire.

Those might have been crushed by a skyscraper falling on top of them. A fire and a crash won't come close to destroying a black box.

Well, 9/11 is a different story. Like they have found the passports of the hijackers but the black boxes were destroyed. And some hijackers were alive after the event http://news.bbc.co.uk/2/hi/1559151.stm and also not forget that there are too many problems with the official story which makes it suspicious.

You might find this site useful: http://www.911myths.com/html/hijackers.html

They certainly are. Doesn't mean they can't be trashed. They have been before.

I doubt a fire and an impact on to water would do it though.

I did say might be. Rescue ops have to be within 15 miles for detection and the overflight area is absolutely massive given the very approx location data provided by the SATCOMM pings.

And the Titanic was built to be unsinkable.

OT, but thats pretty much a myth: http://en.wikipedia.org/wiki/Legends_and_myths_regarding_RMS...

Oh cool! I didn't know that. Off topic, but I learned something. Thanks.