Meet 'Pat', The Drill That'll Dig A New Underwater Tunnel From Staten…

New York City's newest toy, a 110-ton, 300-foot-long Caterpillar boring machine named "Pat," will soon spearhead a $250 million water tunnel project. Digging a 12-foot diameter tunnel almost two miles long, Pat will create the replacement for two other, shallower tunnels currently in the way of expanding the port… » 4/20/12 2:00pm 4/20/12 2:00pm