 He said he would do this despite "probably hav[ing] to swallow hard" due to the chance of significant defense spending cuts coming out of the process.In November 2011, as part of the National Defense Authorization Act for Fiscal Year 2012 (the bill to fund the U.S. military), McCain and Senator Carl Levin initially proposed to permit the indefinite detention of American citizens by the U.S. military, without charges or trial, solely on grounds of suspected terrorist activity.After objections were raised that such detention would violate Americans' constitutional rights, McCain agreed to include language specifically exempting American citizens.