While European negotiators focus on Iran's development of enriched plutonium, U.S. intelligence officials say Tehran already has completed all of the elements required for an atomic bomb. The news has stunned President Bush, according to Geostrategy Direct, an intelligence news service led by national security reporter Bill Gertz of the Washington Times. "It's an incredible piece of intelligence that overshadows everything we thought we knew on Iran's nuclear program," one U.S. intelligence source said.