Trying to stop Trump flipping the switch

It is unlikely the volatile US president would limit his power to press a nuclear button, so cabinet members should be authorised to oversee first-strike orders, says John Mecklin

From the beginnings of the 2016 US general election campaign, through the presidential debates and on to Donald Trump’s “fire and fury” comments on North Korea this summer, the prospect of a president as impulsive as him in command of nuclear weapons has raised global worries.