President Trump on Tuesday added to his long list of battles by issuing an executive order to increase preparedness for a possible electromagnetic pulse, or EMP, attack. An EMP, either by a nuclear device or solar event, could shut down massive sections of the electric grid, according to numerous studies. That would mean no financial transactions are possible, no truck transport to haul goods and food, no communications and much more. In short, it could threaten the lives of tens of millions of people. The White House confirmed that the president has signed an order titled “Coordinating National Resilience to...