To diffuse the fact that he would be the oldest person ever elected president, John McCain likes to talk about his gene pool -- and how his mother is still going strong at age 90. But the quality of one's genes is only one determinant of longevity. Considering McCain's history with skin cancer, who knows what his medical future holds.
My understanding is that Sarah Palin is a nice lady. I certainly don't agree with her on most of the important social issues. Other than her interesting life story, I don't know much about her. I don't know if McCain knows much about her.
God forbid something bad should befall a 72-year-old man who's had skin cancer. But if it does, is this truly the woman we want dealing with Putin on an instant's notice?
For me, the answer is no.