Iran’s President Hassan Rouhani has opened the academic year at Tehran University with a riposte to President Donald Trump’s threat to decertify the nuclear deal with Iran.

During his presidential campaign Trump said he would scrap the deal, and this may come as early as next week.

“The nuclear negotiations and deal have achieved benefits that are irreversible. Nobody can roll them back, neither Mister Trump nor 10 other Trumps.”

The White House insists Iran is breaking the spirit of the deal, continuing to support Hezbollah in Lebanon, and using the Revolutionary Guard in Syria to support President Assad. Trump has promised “new responses”
to tackle the two issues.

On Friday the Nobel Peace Prize went to the world’s foremost pressure group campaigning to outlaw nuclear weapons.