WASHINGTON, June 25 (UPI) -- The Iraq war has demonstrated the limits of American power, not the capabilities, according Stefan Halper, a policy aide under Ronald Reagan's presidency. This is "what people around the world see," said Halper, and "that's a very frightening development." Halper, who served under Presidents Richard Nixon, Gerald Ford and Reagan in the White House and State Department, made the comments at the New America Foundation, a bipartisan think tank that hosted the presentation of his book, "America Alone: The Neo-Conservatives and the Global Order" in Washington Wednesday. He described the policies of the neo-conservatives as...