If an escape happened, a plant's operators would just turn it off and let it cool down of its own accord.

ECONOMIST: Prospects for a new type of nuclear reactor look mixed

Let's cool things down.

BBC: US envoy Bill Richardson warns of Korea tinderbox

Frist had a compelling reason to turn down the burner and let passions cool over the judicial nominations.

NPR: In the Senate, Fireworks Over the 'Nuclear Option'