YNet News 
Oct 5, 2012
Neither Israel  nor the US has the capabilities to obliterate Iran’s atom program, he said, and a military operation against the country’s nuclear facilities “would make a nuclear-armed Iran inevitable. They would just bury the program deeper and make it more covert.”
Gates, who staunchly opposed an attack on the Islamic Republic during his term in the Pentagon, made the remarks in a speech in Norfolk, Virginia.
“The results of an American or Israeli military strike on Iran could, in my view, prove catastrophic, haunting us for generations in that part of the world,” he said, and called for harsher sanctions to be imposed on Tehran.