San Bernardino attack couple 'radicalised at least 2 years ago'

The couple behind the San Bernardino attack were radicalised at least two years ago and had discussed jihad and martyrdom as early as 2013, FBI director James Comey has said.

That was well before one of them came to the US on a fiancee visa, Mr Comey added while providing the most specific details to date about the pair’s path toward extremism.