41.   No nuclear fission, no warhead on a missile, no mushroom cloud.

42.   No mushroom cloud, no atomic reaction, no warhead on a missile.

43.   One famous television commercial featured a young girl picking a daisy whose image gave way to footage of a mushroom cloud from a nuclear explosion.

44.   One miscalculation and all the achievements of history could vanish in a mushroom cloud.

45.   Our grainy mushroom cloud has become their crumbling twin towers.

46.   Pay no attention to the embers and the mushroom cloud, Michelle Kwan was trying to tell us.

47.   Saw the flash of light, the mushroom cloud.

48.   Still, he tried to explain, in a mushroom cloud of sentiment.

49.   Teachers told us not to look directly into the bright light that we might see after a big explosion and before the mushroom cloud formed.

50.   Swallowed up in mushroom clouds of hate, destruction, terror, cowardice.