Last night, PBS premiered the Frontline documentary on the NFL's head-injury crisis, League of Denial. The principal investigative journalists featured in League of Denial, ESPN reporters (and brothers) Mark Fainaru-Wada and Steve Fainaru, are here to answer your questions.

Want to know more about the documentary? About former commissioner Paul Tagliabue's stonewalling? About how they felt when ESPN divorced itself from the documentary two months before its release? (Here's what Steve Fainaru told Slate's Hang Up and Listen crew on Monday: "ESPN, as many people know, is an odd situation—I mean, to have journalism as part of their DNA but they have a $15.2 billion contract with NFL. So, we're in a sense, investigating our own product. It's an odd situation.")

Watch the movie, buy their book of the same name, and ask them questions down below. They're waiting for you.

Update, 7:07 p.m.: The Fainarus are taking off. Thanks for dropping by. There's good stuff down below.