The Food and Drug Administration (FDA) halted a coronavirus testing program promoted by billionaire Bill Gates and Seattle health officials pending reviews. The program sought to send test kits to the homes of people both healthy and sick to try to bring the country to the level of testing officials say is necessary before states can begin safely reopening. The program, which had already gone through thousands of tests, found dozens of cases that had been previously undiagnosed. The Seattle Coronavirus Assessment Network (SCAN) said on its website that the FDA had asked it to pause testing while it receives...