Testifying before the Iraq Inquiry on 29 January 2010, Blair said Saddam was a "monster and I believe he threatened not just the region but the world." Blair said that British and American attitude towards Saddam Hussein had "changed dramatically" after the 11 September attacks. Blair denied that he would have supported the invasion of Iraq even if he had thought Saddam had no weapons of mass destruction. He said he believed the world was safer as a result of the invasion. He said there was "no real difference between wanting regime change and wanting Iraq to disarm: regime change was US policy because Iraq was in breach of its UN obligations." In an October 2015 CNN interview with Fareed Zakaria, Blair apologised for his "mistakes" over Iraq War and admitted there were "elements of truth" to the view that the invasion helped promote the rise of ISIS. The Chilcot Inquiry report of 2016 gave a damning assessment of Blair's role in the Iraq War, though the former prime minister again refused to apologise for his decision to back the US-led invasion.