david somati, the chief of robotic surgery, he's doing his live from new orleans, where he's attending the annual gathering of the american you're logical association. good to see both of you doctors. >> good to see you. . >> going to start with the horrific tragedy of the amtrak crash as you know. eight people were killed during that incident. more than 200 were injured, many still in the hospital. now they face a really tough road to recovery. let's start with you. how do you best -- what do they do? what's ahead for them when you have such a traumatic experience and have to deal with this, whether it's a psychological or physical trauma? >> that's a great question. the lack of seat belts on trains had a lot to do with what happens. the way that injuries occur isn't what you expect. it's people flying around cars, hitting off of luggage rackings, hitting off of each other. if you're sitting forward, you can hit the table in front of you and end up with abrosimova domal injury. if you're sitting backwards, you can get rip lash. tough they're lucky this occurred in such a major city. t