At New York's Kennedy airport today, an individual later discovered to be a public school teacher was arrested trying to board a flight while in possession of a ruler, a protractor, a setsquare, a slide rule, and a calculator. At a morning press conference, Attorney General Alberto Gonzalez said he believes the man is a member of the notorious al-Gebra movement. He is being charged by the FBI with carrying weapons of math instruction. Al-Gebra is a fearsome cult,"" Gonzalez said. ""They desire a…