They were ready to roll whenever disaster struck California: three 200-bed mobile hospitals that could be deployed to the scene of a crisis on flatbed trucks and provide advanced medical care to the injured and sick within 72 hours. Each hospital would be the size of a football field, with a surgery ward, intensive care unit and X-ray equipment. Medical response teams would also have access to a massive stockpile of emergency supplies: 50 million N95 respirators, 2,400 portable ventilators and kits to set up 21,000 additional patient beds wherever they were needed. In 2006, citing the threat of avian...