>> i can't believe i'm alive. you won't believe your eyes. >> boom, it went up. "caught on camera" fire ball. >> hello, i'm contessa brewer. welcome. dangerous materials are used every day. usually without incident because safeguards are in place to minimize risks, but natural disasters and manmade accidents happen all too frequently. and when highly flammable materials are involved, an emergency situation can become a fireball. >> may 15th, 2009, firefighters in texas are battling a blaze at the tank facility that stores oil and gas and sea water. when they think they have the fire under control a flare erupts from the tank on the