Runner Falls News Today

>> sanjay, take a look at this video. what stands out when you see this video from a medical standpoint? >> when you watch that you see the explosion certainly happen, but look at obviously one runner falls, who may have just stumbled or may have had something happen to his ears, but theres not a significant blast to them in terms of moving them across the course there. i thought if you focus on that one thing, you can see -- get an idea of the focus and magny tutd of the impact. also, if you lo...