NYC Subway Surfing

New Yorker's call it “subway surfing”: a stunt riders have attempted and died from since the transit system’s earliest days, but which has returned as a disturbing trend over the last year among young men and teenage boys who often post the clips online.

According to statistics provided by the Metropolitan Transit Authority, there have already been 627 incidents of people riding outside of trains between January and July this year – up from 96 incidents during the same period last year.