The lights still scream for attention, but on this night Times Square has the feel of an abandoned Hollywood film set. Gone are the hordes of tourists shooting selfies with Elmo and Wonder Woman. Instead, a lone SUV glides by and a passenger's phone glows as she records the scene from the safety of the car.

The unease grows on the descent into the Times Square subway station. Tutting commuters don't barge past dawdling visitors. The full-time panhandlers have withdrawn. There is no music; the buskers are home, following orders to shelter in place.

On a normal night, in a normal time, you might not notice the gaunt man on the platform, his jeans held up by a cinched belt. But on this night, you notice that his face is uncovered.