President Donald Trump has taken tough steps to protect Americans from the spread of the coronavirus rampaging through China. In an order issued Friday, federal officials announced that as of 5 p.m. Sunday, “Foreign nationals other than immediate family of U.S. citizens and permanent residents who have traveled in China in the last 14 days will be denied entry into United States.” American citizens returning the U.S. from areas in China where they may have been exposed to the virus will be quarantined, while others coming from the rest of China will be screened for the virus. Earlier Friday, officials...