historical items missing from Nat'l Archives

WASHINGTON –
visitors know they'll find the Declaration of Independence, the U.S.
Constitution and the Bill of Rights in the main building's magnificent
rotunda in Washington. But they won't find the patent file for the
Wright Brothers' Flying Machine or the maps for the first atomic bomb
missions anywhere in the Archives inventory.
Many historical items the Archives once possessed are missing, including:
_Civil War telegrams from Abraham
_Original signatures of Andrew Jackson.
_Presidential portraits of Franklin Delano Roosevelt.
_NASA photographs from space and on the moon.
_Presidential pardons.
Some were stolen by researchers or Archives employees. Others simply disappeared without a trace.

http://news.yahoo.com/s/ap/20090704/ap_on_go_ot/us_archives_missing_history

Iron mountain they have a huge archive inside with everything you can think of things they want to preserve from any possible scenario have been moved there