FRONTLINE

"League of Denial: The NFL's Concussion Crisis" preview

Preview: Season 2013 Episode 16 | 2m 15s

The National Football League, a multibillion-dollar commercial juggernaut, presides over America’s indisputable national pastime. But the NFL is under assault as thousands of former players and a host of scientists claim the league has covered up how football inflicted long-term brain injuries on many players. FRONTLINE investigates: What did the NFL know, and when did it know it?

Aired: 10/07/13

Rating: NR

Problems Playing Video? | Closed Captioning

Funding for FRONTLINE is provided through the support of PBS viewers and by the Corporation for Public Broadcasting. Major funding for FRONTLINE is provided by the Ford Foundation. Additional funding …

Putin and the Presidents

Transparency Project

Putin and the Presidents

To produce our documentary "Putin and the Presidents," the FRONTLINE team interviewed current and former U.S. government officials and policy experts, as well as American and Russian journalists who have covered U.S.-Russia relations for decades. These interviews can be explored in video and text at the link.

Read & watch