Joaquin upgraded to Category 4, 'no sign' of missing cargo ship

Rescue workers on Saturday scoured the waters off the Bahamas for a missing cargo ship with 33 people aboard, as forecasters upgraded Hurricane Joaquin to a Category 4 storm. Joaquin moved away from the Bahamas, where it destroyed homes, caused flooding and left hundreds without power, and was expected to bypass the United States, whose southeast coast has already been ravaged by heavy flooding. The hurricane, which was packing 155 mile-per-hour (250-kilometer-per-hour) winds, had become "severe