20-20 documentary investigation by John Stossel entitled "Stupid in America" highlighting some of the flaws with the education system in the United States. The story started out when identical tests were given to high school students in New Jersey and in Belgium. The Belgian kids cleaned the American kids' clocks. The Belgian kids called the American students "stupid", which gave the piece its name. Jay Greene, author of "Education Myths," points out that "If money were the solution, the problem would already be solved: We've doubled per pupil spending, adjusting for inflation, over the last 30 years, and yet schools aren't better." Ben Chavis is a former public school principal who now runs an alternative charter school in Oakland, Calif., that spends thousands of dollars less per student than the surrounding public schools. He laughs at the public schools' complaints about money. "That is the biggest lie in America. They waste money," he said. To save money, Chavis asks the students to do things like keep the grounds picked up and set up for their own lunch. For gym class, his students often just run laps around the block. All of this means there's more money left over for teaching. Even though he spends less money per student than the public schools do, Chavis pays his teachers more than what public school teachers earn. His school also thrives because the principal gets involved. Chavis shows up at every classroom and uses gimmicks like small cash payments for perfect attendance. Since he took over four years ago, his school has gone from being among the worst in Oakland to being the best. His middle school has the highest test scores in the city. "It's not about the money," he said.