New Delhi, June 27 -- The White House said on Thursday (June 26) that American intelligence had been monitoring Iran's nuclear facilities "for weeks" before launching airstrikes that destroyed the country's uranium enrichment infrastructure. But a few reports suggest Iran may have succeeded in moving substantial quantities of near weapons-grade uranium to secret sites before the attack.

"We were watching these sites very closely," White House press secretary Karoline Leavitt told reporters. "There was no indication that Iran moved its enriched uranium out of the facilities before Operation Midnight Hammer."

She described the strikes as "one of the most secretive and successful operations in United States history."

Leavitt pointed out t...