About 50 Pentagon staff have been given polygraph tests, amid an investigation into leaks to the media about the war with Iran and depleted weapons stockpiles.

In an extraordinary move, US government investigators have subjected 50 members of the American military’s Joint Staff to polygraph tests over leaks to journalists, including…

US President Donald Trump has threatened “long-term jail sentences” for anyone found responsible for releasing information about the US munitions stockpiles.