US, European leaders weigh reopening risks without a vaccine

People relax in marked circles for proper social distancing on Sunday at Domino Park in the Williamsburg neighborhood of Brooklyn in New York. (AP Photo/Kathy Willens)

NEW YORK — On a weekend when many pandemic-weary people emerged from weeks of lockdown, leaders in the U.S. and Europe weighed the risks and rewards of lifting COVID-19 restrictions knowing that a vaccine could take years to develop.