Film critics, political commentators and other members of the media have also noted the film's numerous references to events surrounding the George W. Bush administration in the United States. These include the hoods and sacks worn by the prisoners in Larkhill that have been seen as a reference to the Abu Ghraib torture and prisoner abuse. The Homeland Security Advisory System and rendition are also referenced. One of the forbidden items in Gordon's secret basement is a protest poster with a mixed US–UK flag with a swastika and the title "Coalition of the Willing, To Power" which combines the "Coalition of the Willing" with Friedrich Nietzsche's concept of will to power.