Incomes for the wealthiest 1 percent of Americans nearly tripled from 1979 to 2007, far outpacing income growth for all other groups, said a new report that underscored sharply increased U.S. income disparity. …

“This report confirms what the American people already know,” said Representative Sander Levin.

“The rules have been changed by the unfair tax policies of the last decade and our tax code is doing less to level the playing field than it was in the past.”