Passengers queue to check-in to a flight at Narita airport, east of Tokyo March 17, 2011. Public trust in the Japanese government faces its biggest test since World War Two over the handling of the nation's nuclear crisis, raising concerns that a breakdown in confidence could fuel panic and chaos if appeals for calm go unheeded. Foreigners are leaving Tokyo, or shutting themselves indoors, and supermarket shelves are running empty despite authorities assuring citizens there is no need to panic from the crisis unfolding at a quake-stricken nuclear power plant. REUTERS/Issei Kato (JAPAN - Tags: DISASTER TRANSPORT ENVIRONMENT)