Empty cans are put on the shelves at a supermarket in Hong Kong for display only, as Japanese milk powder is sold out on March 16, 2011. Milk powder from Friso, Mead Johnson and other Japanese brands were out of stock at several supermarkets in Hong Kong. A few drugstores had a small supply, prompting people to flock to the stores, in turn causing prices to be raised. [Photo/CFP]