Reid Kennedy, materials manager at San Francisco General Hospital, stands next to racks of saline solution.
Hospitals across the nation are struggling to deal with a shortage of one of their most essential medical supplies. Manufacturers are rationing saline, a product used all over the hospital to clean wounds, mix medications or treat dehydration. Now, drug companies say they won't be able to catch up with demand until next year. So why is something as basic as salt water so hard to come by? Reporter: April Dembosky