The leaders we need: How mayors (and presidents) steered NYC through previous crises

Beame, Bloomberg and de Blasio: Different problems; different outcomes. (AP)

New York City is confronting calamities as intimidating as any in its history. With inspired leadership and a federal government commitment, the city can recover rapidly from its multi-layered crisis, and there is even a chance that the shock of the moment can push aside progress-killing inertia to make way for long-overdue changes. But without…