THE FOOD CHAIN. By Nicky Silver. With Hope Davis, Phyllis Newman, Rudolf Martin, Patrick Fabian and Tom McGowan. Sets by Thomas Lynch. Costumes by William Ivey Long. Directed by Robert Falls.

But they are not evidence of major disruptions to the food supply chain, experts say ... Many shoppers have posted photos of long lines and empty shelves that have incited mild panic.

Food distributor UNFI reported "unauthorized activity" on its IT systems and said that deliveries to some supermarkets were ...