New York City

When a New York City doctor was diagnosed with Ebola, the epidemiologists knew just what to do: search the city for potential contacts.It's a gig they perform daily with far more contagious diseases.

Automatically charged as adults in New York, the 16- and 17-year-old boys are at risk for assault by both corrections officers and other inmates. But advocates say reform efforts are moving slowly.

District Attorney Kenneth Thompson says he will stop prosecuting some people arrested for low-level marijuana possession. But that won't stop the New York Police Department from making arrests.

It's been nearly a year since a court ruling curtailed the New York Police Department's controversial practice. Today, Police Commissioner William Bratton says the city can be just as safe without it.

A team led by Emily Thompson, a history professor at Princeton, has matched noise complaints from New York City in the Roaring '20s with the actual street sounds of the day.

Following the lead of cities like San Francisco and Washington, D.C., New York wants to permit passengers to use smartphone apps to find a yellow cab. But the prospect of change has prompted a lawsuit from private car services, whose passengers already use smartphones to hail drivers.