From a CNN report:
Buffett revealed his puzzlement that he was taxed at a lower rate than many of the lesser-paid individuals working for his company.
Buffett said he makes $46 million a year in income and is only taxed at a 17.7 percent rate on his federal income taxes. By contrast, those who work for him, and make considerably less, pay on average about 32.9 percent in taxes -- with the highest rate being 39.7 percent.
To emphasize his point, Buffett offered $1 million to the audience member who could show that one of the nation's wealthiest individuals pays a higher tax rate than one of their subordinates.
"I'm willing to bet anyone in this room $1 million that those rates are less than the secretary has to pay," said Buffett.