U.S. Rep. Charlie Dent (PA-15), Ranking Member of the Subcommittee on Transportation Security and Infrastructure Protection which oversees the Transportation Security Administration (TSA), sent a letter to the Secretary of the Department of Homeland Security, Janet Napolitano, demanding a response and Inspector General investigation into the events that allowed the TSA to unwittingly post an extensive security document on the Web site of the U.S. Department of Commerce.

“Aviation Security Screening Management Standard Operating Procedures,” a ninety-three page document riddled with sensitive information specific to security procedures at more than 450 airports, had been posted on the Department of Commerce’s Web site since March 2009. The document was removed after being discovered this weekend but has since been reposted by several independent groups.

“Significant damage has been done and the magnitude of this breach of security cannot be quantified,” said Ranking Member Dent. “I have great respect for the Secretary and the DHS Inspector General and fully expect they will conduct a comprehensive investigation to uncover how and why TSA enabled such a careless mistake. Most importantly, I want to know what new measures are being employed to ensure the traveling public is protected