Why are you asking me that question? I do know that Putin has lately been lifting weights and going down on submarines as part of some PR effort to show how manly he is. I surmised that Obama is trying to respond somehow to Putin on some level. I guess shooting a basketball isn't enough.
I had an idea why obama wanted to do it. I would think Grylls would have more to lose from the association than to gain. Some would not refuse a President but I know many that would refuse obama, tax audits and all.