Arms Control Association says that consensus among US intelligence is that Iran was not building a bomb

Three top officials at the Arms Control Association, said US involvement in Israel's "illegal attacks" on Iran would set back U.S. and global security and increase the risk of nuclear proliferation in a statement on Wednesday. 

The US-based nonpartisan membership organisation said military involvement would "set back efforts to reach an effective nuclear agreement to block Iran's pathways to the Bomb".

The statement also added that the "consensus view among U.S. intelligence agencies before Israel's bombing campaign was that Iran had not made a decision to move forward on building a bomb, and was several months away, if not longer, from being able to assemble a crude device.

"There was no imminent threat that Iran was weaponizing its nuclear program before Israel's attack began."

The organisation warned that "military strikes cannot destroy Iran's extensive nuclear knowledge," but could prompt it "to consider withdrawing from the nuclear Nonproliferation Treaty, and possibly proceeding to weaponization, a step it has not taken up to this point."

It strongly urged the US government “to choose nuclear nonproliferation diplomacy over war”.