According to the Republicans, it's because (ready?) George W. Bush hasn't educated us.
"It's a heavy lift," Mr. Grassley, the chairman of the Senate Finance Committee, said Friday, after a week spent crisscrossing his home state to host 17 town-hall-style meetings. He said the sessions ended "without my getting much of a consensus of where people are, except general confusion," and with the president still facing "a major job of educating people."
Thank you, Mr Grassley, but I prefer to have teachers who have actually read at least two books in their lives, and who are able to speak their native language.