Gov. Jerry Brown (center) holds up a legislation which he signed authorizing initial construction of California's $68 billion high-speed rail line with Los Angeles Mayor Antonio Villaraigosa (left) and state and city officials looking at Union Station on July 18, 2012 in Los Angeles, California. The bill authorizes $10 billion in state bonds to start construction of a high-speed rail line between Los Angeles and San Francisco. Photo: Kevork Djansezian, Getty Images