holy crap ! McCain salutes the best he can, which by standard is completely wrong, but again - its the best he can do. I'm not sure on the exact nature of his injury, but Id assume its rotator cuff related. And DUmbass - this is something you don't recover from, even the finest surgeons cant guarantee any improvement, and warn that you may end up going from bad to worse.
To suggest his injuries are fake based on a few suppositions made from a couple of photos is stupid beyond DU's usual level of ignorance.