03/28/2008 02:45 am ET Updated May 25, 2011

Waxman: Blackwater Inquiry Blocked by State Dept

The Democratic chairman of a House committee complained Tuesday that the State Department was blocking his panel's efforts to investigate the private security firm Blackwater USA and its operations in Iraq.

The department described the situation as a "misunderstanding."

In a letter to Secretary of State Condoleezza Rice, Rep. Henry A. Waxman of California, the chairman of the House Oversight Committee, wrote that the State Department had prevented Blackwater from cooperating.

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