Buffett's Call for Tax Increases for the Rich. Koch Responds.

I wonder how Mr. Buffett has his income tax sheltered by tax loopholes that his cronies in DC arranged for him.
Here is Mr. Koch's letter in response.

“Much of what the government spends money on does more harm than good; this is particularly true over the past several years with the massive uncontrolled increase in government spending. I believe my business and non-profit investments are much more beneficial to societal well-being than sending more money to Washington. — Charles G. Koch, Chairman and CEO, Koch Industries, Inc.

Read more from National Review by Daniel Forester.