The U.S. surpassed a jarring milestone Wednesday in the coronavirus pandemic: 100,000 deaths. “It’s a striking reminder of how dangerous this virus can be,” said Josh Michaud, associate director of global health policy with the Kaiser Family Foundation in Washington. The once-unthinkable toll appears to be just the beginning of untold misery in the months ahead as Las Vegas casinos and Walt Disney World make plans to reopen, crowds of unmasked Americans swarm beaches and public health officials predict a resurgence by fall.