I might be wrong, but didn&#x27;t he already pay the massive tax bill for all of the stock options? Meaning all of those stocks would be taxed at long term capital gains rates, not at the high rates you are saying here. I believe his Federal taxes on sales would be 15% of current price - IPO price so approximately 4.5B not 13-15B at this time. That is also assuming Facebook continues to be dominant and doesn&#x27;t go the way of every other social networking site before it, but that is a different issue.<p>And either way, the charitable organizations deserve to be supported and will do good for society, and they get to pick how it is used. Which doesn&#x27;t seem like a bad thing, when the Federal government can barely agree on any budget at all.