Before 
going to bed last night, I read a brief report about a town in the US hit by tornadoes. This morning, this thread at Metafilter reported that the tornado that hit that town (Greensburg) seemed to have just flattened the town. The pictures reminded me of the damage after the first nuclear bomb attack on Hiroshima (1945) [see Little Boy].
Currently 10 people have been confirmed dead but news media (CNN and others) fear that the number may rise the next couple of days.