Mary Carter, 63, waits in a queue outside St. Stephen Outreach to collect food donations in the Brooklyn borough of New York, on Friday, March 20, 2020. For decades, American nonprofits have relied on a cadre of volunteers who quite suddenly aren’t able to show up. With millions staying home during the pandemic, charities that help the country’s neediest are facing even greater need. (AP Photo/Wong Maye-E)