WASHINGTON Senator Bernie Sanders said recently that it is time to rethink the privatization of the United States military. In Iraq alone, there are roughly 180,000 private contractors working for American government agencies, including about 30,000 heavily-armed guards. The most notorious contractor, Blackwater USA, has been embroiled in controversy over the deaths last month of 17 Iraqis. A State Department contract with the private security firm, which escorts U.S. diplomats traveling outside the heavily protected Green Zone in Baghdad, expires in May. Sanders said the contract should not be renewed. Sanders said he would work with other members of the Senate and House in taking a hard look at the role of private contractors in the military.