Barack Obama embarked on the wholesale deconstruction of George Bush's war on terror, shutting down the CIA's secret prison network, banning torture and rendition, and calling for a new set of rules for detainees. The repudiation of Bush's thinking on national security yesterday also saw the appointment of a high-powered envoy to the Middle East.
Obama's decision to permanently shut down the CIA's clandestine interrogation centres went far beyond the widely anticipated move to wind down the Guantánamo Bay detention centre within a year.
He cast his scrapping of the legal apparatus set up by Bush as a way for America to reclaim the moral high ground in the fight against al-Qaida.
"We are not, as I said during the inauguration, going to continue with the false choice between our safety and our ideals," Obama said at the signing ceremony. "We intend to win this fight. We are going to win it on our own terms."