I have always wanted to ask Buffet and Gates the following:
Since you have both pledged to give away a large portion of your fortunes to charity, why not dispense with the the expenses and hassles involved with giving away that much money and just turn your charitable contributions over to the government? Let them give it away for you. Obviously, they believe that the government is the most effective and efficient way to do charitable work. Surely, they wouldn’t worry about whether or not their money would be used wisely.