Israel's Prime Minister Benjamin Netanyahu put on a theatrical presentation this week to convince the world that a nuclear deal signed by Iran and six world powers has to be scrapped, but one crucial element was missing.

On Monday, less than two weeks before a May 12 deadline for United States President Donald Trump to decide whether to pull the US out of the deal, Mr Netanyahu went live on Israeli TV to present new "proof" of an Iranian nuclear weapons plan that could be activated at any time.