Funny. Buffett certainly didn't mind a little coddling in 2008. He was arguably one of the largest individual beneficiaries of bailouts which shifted ungodly amounts of toxic debt from failed private institutions to taxpayers. See http://blogs.reuters.com/rolfe-winkler/2009/08/04/buffetts-b....
While it's now mighty generous of Buffett to invite the government to increase his taxes, he could spare us another (http://www.cnbc.com/id/40229527/Warren_Buffett_s_Letter_to_U...) nauseating and embarrassing New York Times op-ed and instead put his money where his mouth is. As another poster has noted, the Treasury will gladly cash Buffett's check (http://www.treasurydirect.gov/govt/reports/pd/gift/gift.htm).