The New York Times: “A federal government plan to combat the coronavirus warned policymakers last week that a pandemic “will last 18 months or longer” and could include “multiple waves,” resulting in widespread shortages that would strain consumers and the nation’s health care system. The 100-page plan, dated Friday, the same day President Trump declared a national emergency, laid out a grim prognosis for the spread of the virus and outlined a response that would activate agencies across the government and potentially employ special presidential powers to mobilize the private sector. Among “the additional key federal decisions” listed among the options for Mr. Trump was invoking the Defense Production Act of 1950, a Korean War-era law that authorizes a president to take extraordinary action to force American industry to ramp up production of critical equipment and supplies such as ventilators, respirators and protective gear for health care workers. “Shortages of products may occur, impacting health care, emergency services, and other elements of critical infrastructure,” the plan warned. “This includes potentially critical shortages of diagnostics, medical supplies (including PPE and pharmaceuticals), and staffing in some locations.” P.P.E. refers to personal protective equipment. The plan continued: “State and local governments, as well as critical infrastructure and communications channels, will be stressed and potentially less reliable. These stresses may also increase the challenges of getting updated messages and coordinating guidance to these jurisdictions directly.”…