This leader used a memo by Lawrence Freedman as the basis of a Chicago speech about foreign policy. The appointment of Martin Gilbert to one position drew controversy because he had earlier compared this leader to Winston Churchill. The Shawcross principle was invoked by this leader's attorney-general Peter Goldsmith to justify one prosecution. Robin Cook resigned after a vote passed by this leader's government that led to Operation Telic. The findings of the Chilcot Inquiry (10[1])were dismissed by this (10[2])man, whose government prosecuted the whistleblower Katherine Gun for leaking a U.S. request about diplomats from members of the U.N. Security Council. The existence of weapons of mass destruction (-5[1])was used to justify a war (-5[1])by this (-5[1])predecessor of Gordon (-5[1])Brown. (10[1])For 10 points, name (10[1])this British prime minister during the Iraq War. ■END■ (10[3]0[1])