To repeal section 1021 of the National Defense Authorization Act for Fiscal Year 2012.

Repeals the affirmation in the National Defense Authorization Act for Fiscal Year 2012 that the President's authority under the Authorization for Use of Military Force (P.L. 107-40) includes the authority for the U.S. Armed Forces, pending disposition under the law of war, to detain persons who: (1) planned, authorized, committed, or aided the terrorist attacks that occurred on September 11, 2001, or harbored those responsible for those attacks; or (2) were a part of or substantially supported al-Qaeda, the Taliban, or associated forces engaged in hostilities against the United States or its coalition partners, including any person who has committed a belligerent act or has directly supported such hostilities in aid of such enemy forces.