Former Senator Chuck Hagel of Nebraska, has called for fresh thinking in U.S. foreign policy and foreign engagements after the wars in Iran and Afghanistan cost the U.S. about one trillion dollars. He says the U.S. should avoid single issue engagement, get the participation of other countries, and increase common ground on a host of issues which concern most of the major nations in the world. This is why we have a G-20 and not a G-8, says Hagel. This policy also helps the U.S. by having other countries in Europe, Asia and the Middle East take up some of the responsibilities that would otherwise fall disproportionately on the U.S., and lets the U.S. devote attention to strengthening the domestic economy which underpins strength in world affairs. On Iran he sees continuing talks as the better approach to coming up with a solution, for which he has come under criticism from some Republicans.