 Bradbury did not offer an opinion if waterboarding was illegal under the Detainee Treatment Act or the Military Commissions Act of 2006, but stated that these laws "would make it much more difficult to conclude that the practice was lawful today".Near the end of the Bush Administration, Bradbury signed two memoranda for the files; these said that, during his tenure OLC had determined that certain legal propositions, previously stated in ten OLC opinions issued between 2001 and 2003 concerning executive power in the War on Terror, no longer reflected the views of OLC and "should not be treated as authoritative for any purpose".In addition, his memo said that some of the underlying opinions had been withdrawn or superseded and that "caution should be exercised" by the Executive Branch "before relying in other respects" on the other opinions that had not been superseded or withdrawn.