The Western Business Roundtable said it brought "cajones" back to Washington during the Capitol Hill Clean Tech Expo '09. Hosted by the roundtable and the NextGen Energy Council, the event boasted "game changing" technologies in energy, manufacturing and other sectors, including innovative natural gas drilling techniques, bigger and better transmission lines for wind farms and even tires made from orange peels. In case you're still not quite sure about the "Western delicacy" served...