21.   But so went the TCU season, which began with an Alaskan mushroom cloud of sorts.

22.   But while lacking the mushroom cloud, the Lugar ads do have the same emotionally overwrought quality.

23.   But these are some of the most poignant tales to rise from the ashes beneath the mushroom clouds.

24.   By mid-afternoon, mushroom clouds from bombs and shells lined the horizon, and the smoke-trails of the American planes marked the skies.

25.   By midafternoon, mushroom clouds from bombs and shells lined the horizon, and the contrails of the American planes marked the skies in long, white streaks.

26.   By the time the insane denouement leaves a bilious mushroom cloud over the proceedings, I was bored.

27.   China warned America not to interfere, or Los Angeles might go up in a mushroom cloud.

28.   Cue mushroom cloud.

29.   Finally, a huge mushroom cloud fills the screen.

30.   Following an eruption last month that formed a huge mushroom cloud, Quito was covered with ash.