In the end, success or failure may come down to how much pressure can be brought to bear on Mr. Fakrizadeh, whom the 2007 National Intelligence Estimate identifies, in its classified sections, as the manager of Project 110 and Project 111.
U.S. Rejected Aid for Israeli Raid on Iranian Nuclear Site
By DAVID E. SANGER
WASHINGTON — President Bush deflected a secret request by Israel last year for specialized bunker-busting bombs it wanted for an attack on Iran's main nuclear complex and told the Israelis that he had authorized new covert action intended to sabotage Iran's suspected effort to develop nuclear weapons, according to senior American and foreign officials.