Update, 2:15 p.m. ET: A previous version of this story incorrectly stated that files were found on P2P networks that listed the location of nuclear missile silos in the United States. A spokesman for the committee said the information regarding nuclear installations is related to sensitive documents accidentally published on the Web site of the Government Printing Office recently, which included a “detailed list of the civilian nuclear complex, including precise locations of weapons grade nuclear fuel.” An earlier version also incorrectly stated that on information the location of a safe house for Michelle Obama was compromised. The safe house was designed for former First Lady Laura Bush. The text below has been changed. The latest caches of sensitive data reportedly found on peer-to-peer (P2P) file-sharing networks are shocking: A highly sensitive document dated July 2009, listing the precise location of installations bearing weapons grade nuclear fuel in the United