While American spy agencies have believed that the Iranians halted efforts to build a nuclear bomb back in 2003, the difficulty in assessing the government’s ambitions was evident two years ago, when what appeared to be alarming new intelligence emerged, according to current and former United States officials.
Intercepted communications of Iranian officials discussing their nuclear program raised concerns that the country’s leaders had decided to revive efforts to develop a weapon, intelligence officials said.
That, along with a stream of other information, set off an intensive review and delayed publication of the 2010 National Intelligence Estimate, a classified report reflecting the consensus of analysts from 16 agencies. But in the end, they deemed the intercepts and other evidence unpersuasive, and they stuck to their longstanding conclusion.