[lbo-talk] Testing concrete for nuclear plants ...

[Jordan Hayes]

Watch a 500+ mph fighter jet turn to dust as it slams into a piece of
special concrete meant to be used to secure nuclear plants.  This may
also give a clue as to what "happened" to the 757 that hit the Pentagon
(people have said "Planes don't just atomize!" ... well, uh, yes they do
sometimes).

http://www.big-boys.com/articles/concreteplane.html