New York City's mayor, Bill de Blasio, and New York's governor, Andrew Cuomo, are seizing the opportunity to make what may yet be a large but not terribly exceptional winter snowstorm into a major emergency. For the mayor, it has the advantage of getting the public's mind off his mismanagement of his relations with the police. For the governor, it gets the public's mind, and the press's attention, off of his failure to "clean up" Albany, as exemplified by the recent federal corruption case filed against the speaker of the New York State Assembly, Sheldon Silver. For both Mr. Cuomo and Mr. de Blasio, the storm is well timed, and they seem all geared up to take full advantage of it. That's not to say that they are not genuinely concerned about public safety and motivated in part by that. But it is to say that, from their political perspective, the storm comes at a good moment, and they are going to make the most of it.