UNITED NATIONS – In his most detailed plea to date for global action against Iran’s nuclear program, Israeli Prime Minister Benjamin Netanyahu said Thursday the world has until next summer at the latest to stop Iran before it can build a nuclear bomb.

Netanyahu flashed a diagram of a cartoon bomb before the U.N. General Assembly showing the progress Iran has made, saying it has already completed the first stage of uranium enrichment.

Then he pulled out a red marker and drew a line across what he said was a threshold Iran was approaching and which Israel could not tolerate – the completion of the second stage and 90 percent of the way to the uranium enrichment needed to make an atomic bomb.