Because like most very wealthy people, most of their income is through investments, not production. investment income falls under the Capital Gains tax and not Federal income tax. Ergo, they end up paying less federal tax than a guy making $25K/year. That's how they are screwing you and the rest of America.
Buffet pays more federal tax than a guy making $25K/year. A lot more.
Try again?
Why don't YOU "try again" and READ the Buffett article...which EXPLAINS how the inequality of the taxes he pays due to tax cuts, breaks, loopholes that are NOT available to you and me let's him take home the lion's share of his income. And if there's a shortage in revenue, why is it incumbent of folk like you and I to shell out more in taxes and let folk like Buffett maintain ALL his breaks?
Buffett pays 15% on his capital gains, so do I.
Where is the inequality?