Vivek Murthy is the new Surgeon General of the United States, after a hard-won confirmation by the Senateyesterday. Murthy, whose position that guns are a health-care issue in the US earned him the ire of the countrys powerful gun lobby, will serve a four-year term as the nations top doctor and public health advocate. The position has lacked a permanent director sinceJuly 2013.Murthyco-founded Doctors for America,...