Sen. Carl Levin , D-Michigan , is the chairman of the Armed Services Committee . In prepared text , he sharply criticizes private contractors that worked for Blackwater . He says they were not properly vetted and should have been banned from working with U.S. troops in Iraq or Afghanistan. Paravant responded that it would need more money to do that , Levin said , calling the company 's response `` deeply troubling '' since its contractual obligation already called for that . He says contractors play key role in perception of U.S. military by Afghan people .
Sen. Carl Levin , D-Michigan , is the chairman of the Armed Services Committee . In prepared text , he sharply criticizes private contractors that worked for Blackwater . He says they were not properly vetted and should have been banned from working with U.S. troops in Iraq or Afghanistan. He says contractors play key role in perception of U.S. military by Afghan people .