变危为安

Explanation: Become critical for the peace. 　　Usage: Style and language; as predicate, attributive; for the situation in 　　Source: Sima Guang Song, "On the week begging not to sit Feng Hao Yan things like": "His Majesty At this time-varying risk to safety, social upheaval as a rule, easy-to-back palm." Thesaurus:  fall on one's legs, fall on one's legs, Survivor, bring about a complete turnabout, pull out of the fire, turn the tables (on someone), Turn failure to success, Turn into a defeat for the, Turn the calamity for the blessing, Disaster for the Fu-turn