After making headlines for weeks, yesterday New Jersey Governor Chris Christie made it official: He's killing the commuter rail tunnel between Manhattan and New Jersey. The project is too expensive, he says, and his state doesn't have the money to cover its share of the costs. The demise of the largest public works project in decades illustrates the stark political choice many voters will make next week: either spend our way out of the Recession with big projects like high-speed trains and tunnels or save our way out with good old fashioned belt-tightening.