we had hundreds of people dying in any one particular year. but as you go throughout the decade, through the '60s, the '70s, the '80s, a steep, steep decline. we drop the number of fatalities dramatically with the advent of doppler year, but this year, boom, 480 plus fatalities. the deadliest year since 1953, and for that we really don't have much of an explanation. piers? >> rob, if you can stand by for us. we're going to go back now to one of the rescue teams who's in joplin. 750 people have already been treated at area hospitals in the wake of the twister there. the city manager says two survivors have been pulled from the rubble in the last 24 hours. rescue workers have been traveling to joplin all throughout the country. ford sypher is one of them. ford, it looks appalling from where we're looking at it. you're there. given other scenes you've had to go and help at, how does this rank?