John Brennan, the former director of the CIA has attacked the Trump administration's approach to fighting terrorism, and called his travel ban "simplistic" and "misguided".

In a wide ranging interview Mr Brennan, gave his most scathing broadside yet against the president whose actions he classed as "mystifying" and offensive.

Asked about whether he believed the new administration's use of the term "radical Islamic terrorism" was helpful in the battle to defeat Isil and other extremist groups, he responded: "No I don’t."