WASHINGTON (Reuters) - A military attack on Iran aimed at halting its nuclear program could have catastrophic consequences and only strengthen Tehran's determination to make an atomic weapon, the former head of Saudi Arabia's intelligence services said on Tuesday. "Such an act I think would be foolish and to undertake it I think would be tragic," Prince Turki al-Faisal said at a Washington, D.C., appearance. "If anything it will only make the Iranians more determined to produce an atomic bomb. It will rally support for the government among the population, and it will not end the program. It will merely delay it if anything." Tensions over Iran's nuclear ambitions have increased this month since the International Atomic Energy Agency (IAEA) reported that Tehran appeared to have worked on designing a bomb and may still be conducting secret research to that end.