Senate Armed Services Committee, 28 Sep 10: Inquiry into the Role and Oversight of Private Security Contractors in Afghanistan
.....The Committee's inquiry uncovered evidence of private security contractors funneling U.S. taxpayers dollars to Afghan warlords and strongmen linked to murder, kidnapping, bribery as well as Taliban and other anti-Coalition activities. It revealed squandered resources and dangerous failures in contractor perfonnance, including untrained guards, insufficient and unserviceable weapons, unmanned posts, and other shortcomings that directly affect the safety of U.S. Military personnel. The Committee also identified serious gaps in government oversight that allowed such failures to persist.

General Stanley McChrystal, the former Commander of U.S. Forces-Afghanistan and the International Security Assistance Force (ISAF), has said that private security contractors are "just not right for a country that is growing law and order." And yet, U.S. Central Command's (CENTCOM) Anned Contractor Oversight Directorate (ACOD) reported that, as of May 2010, they were aware of more than 26,000 private security personnel operating in Afghanistan. According to the ACOD, 90 percent of those personnel were working under either U.S. Government contracts or subcontracts. The Committee's investigation reveals the threat that security contractors operating without adequate U.S. government supervision can pose to the mission in Afghanistan....
Publicly released classified report with redactions.