At least one Bush administration official opposed torturing prisoners, Condoleezza Rice's most senior adviser Philip Zelikow. Upon learning details of the program, Zelikow wrote a memo to Rice contesting the Justice Department's Torture Memos, believing them wrong both legally and as a matter of policy. Zelikow's memo warned that the interrogation techniques breached US law, and could lead to prosecutions for war crimes. The Bush Administration attempted to collect all the copies of Zelikow's memo and destroy them. Jane Mayer, author of "The Dark Side", quotes Zelikow as predicting that "America's descent into torture will in time be viewed like the Japanese internments", in that "(f)ear and anxiety were exploited by zealots and fools."