The United States is one of the most politically polarized countries in the world. Because effective lawmaking requires bipartisanship and members of Congress are, like their constituents, at their most ideologically divided point in a half century, cooperation is in increasingly short supply. As a result or, more precisely non-result, the U.S. Congress passes fewer bills every year.             There is, however, one consistent area of agreement on Capitol Hill: defense spending. Each year for the past six decades, the massive National Defense Authorization Act—Washington-speak for the federal defense spending bill has passed with overwhelming bipartisan support. Defense appropriations are so sacrosanct that the press often describes the NDAA as “must pass”; it is routine for Congress to add in hundreds of millions of dollars of extraneous spending that the Pentagon does not want or request.             In the U.S. Congress, even “antiwar” voices support the military. Obama’s 2008 campaign was primarily predicated on his opposition to the U.S.…