A look at the Gulf oil spill after the cameras had gone

Aired: 11/19/2014 | 0:05:32 | Clip
More than four years ago, the Deepwater Horizon oil rig exploded, gushing oil into the Gulf Coast for almost three months before it was capped. Despite settlements and clean-up efforts, some communities have never fully recovered. Filmmaker Margaret Brown joins Hari Sreenivasan to discuss her documentary, "The Great Invisible," which examines the fallout.