Our collective best wishes to Tony Snow. It's been a sobering several days, with Snow's cancer recurrence and that of Elizabeth Edwards. It's a reminder that with all our technology, the best medical care available, which I'm sure both of these two have, we're still vulnerable to being stricken in the prime of our lives by organic processes emerging from within our own bodies that we cannot control. I admire the bravery of both of them. It reminds you of the need to live every moment, every day and year, at the outer boundary of its possibilities, its potential.