As coronavirus cases surge in the U.S., many hospitals are reaching their breaking points. In New York City, in-person learning was canceled for the nation's largest public school system after the city's seven-day test positivity rate rose above 3%. CBS News correspondent Mola Lenghi reports on what's happening across the country, and Randi Weingarten, president of the American Federation of Teachers, joined CBSN's Lana Zak to discuss the decision to move New York City's public schools to remote learning.