Peter Vincent Pry said back in 2012 that the Norks had the power to EMP attack us. See http://www.washingtontimes.com/news/2012/dec/19/north-korea-emp-attack-could-destroy-us-now/?page=all
A 2013 article about the danger we’re in: http://acdemocracy.org/u-s-vulnerabilities-to-emp-attack/
An article from 2015 noting that NORAD moved back into a facility within a mountain because its computers would be protected from an EMP attack there. They note that both NK and Iran have South Pole orbits and seem to be preparing to exploit the vulnerability caused by the hole in our south=facing radar : http://www.newsmax.com/Newsfront/electromagnetic-pulse-attack-threat/2015/05/01/id/642149/