The huge sunspot has the potential to send out dangerous solar flares known to take out important communication equipment, satellites, and even huge sections of the power grid. This sunspot is the first to appear after the sun was spotless for 2 days and the dark core is larger than the Earth.
You can read the rest @http://www.shtfplan.com/forecasting/the-75000-mile-wide-hole-in-the-sun-could-black-out-earths-communications_07132017
Why worry about North Korea having a puny EMP device when the sun might wipe out everything everywhere?
We live in a violent universe, and there is not a damn thing we can do about it.