On the day after nationwide Tea Party protests, the Washington Post carried this headline in a text box at the top of Page One: "Tax Burden Near Historic Low: The average family sent about 9 percent of its income to the IRS, with the middle-class faring especially well, according to federal data. A12." (The D.C. tea party was noted at the bottom of the page, and readers were sent to B-1, the front of Metro.) But how do the Post’s "tax burden" claims stand up?