Billionaires

I thought this was an interesting news item about Bill Gates and Warren Buffet challenging other billionaires to give away half their fortunes. As an aside, I find it amazing that the richest man in the world is still married to his wife. Some people are skeptical that he is faithful, and I am obviously not in a position to know. However, most rich celebrities seem to have trouble staying married, so I find their continued union commendable.