Are we really ready for this?
First off, let me be very, even excessively clear: I wish John McCain a long, happy life, one that is surrounded for many years to come by people who love him and whose company he enjoys. By all appearances, he has every opportunity to do so, and I firmly believe he should be allowed that opportunity - he's certainly earned it.
Having said that, we "US Americans" need to ponder for a moment the fact that he's getting along in years, running for the nation's highest office at an age where people frankly aren't expected to stick around much longer.