MATT LAUER: It is a startling number. More than 244,000 U.S. troops have returned from the wars in Iraq and Afghanistan with traumatic brain injuries, an issue that is front and center for the NFL, a league dealing with the problem of concussions among many of its current and former players. The league is now teaming up with the U.S. Army and National Institutes of Health to research ways to limit these types of injuries. Roger Goodell is commissioner of the NFL. Dr. Story Landis is the director of the NIH's Neurology Institute, and General Odierno is the chief of staff of the Army. Good morning to all of you. It's nice to see you.
General, that's a huge number, 244,000 returning military personnel with these brain injuries. I know the seriousness of those injuries varies from person to person, but it's a problem that has to be addressed.
GEN. ODIERNO: Absolutely, and one of the problems we have are soldiers coming forward first to say I have a problem. And so one of the things we're really focusing on is making sure that the same qualities -- mental toughness,physical toughness,dedication to mission accomplishment -- does not impede people from saying "I have a problem and I need to get help." That's why this initiative is important to us. We're now putting sensors in helmets, our kevlar helmets for the first time. About 7,000 soldiers have those in their helmets. As we're collecting more and more data, we're learning more and more information, but we have a lot of work to do yet.