six people on board. one body found. crews are still searching for others. officials say they are likely all dead. the aircraft was reportedly headed for the island of vieques. crews on two other helicopters on the mission reported heavy rain at the time. a strong earthquake struck in the pacific ocean today off southern japan. no immediate reports of any injuries or damages. but the country's meteorological agency initially issued a tsunami alert for nearby islands and warnings for the southern coast of the main japanese islands. officials say the quake hit offshore about 600 miles south of tokyo. the initial reading was a 7.4. there is a new reason to worry about buffet tables in restaurants and at salad bars and it has nothing to do with building better sneeze guards. the feds say terrorists may be plotting to poison the food. a live report coming up next.