July 6, 2013 3:22 PM
Josh Fox galvanized the U.S. anti-fracking movement with his incendiary 2010 documentary "Gasland." Now he's back with a sequel ? and this time, he's targeting an audience of just one. Fox says "We want the president to watch the movie, and we want him to meet with the people who are in it," U.S. airlines canceled more flights in and out of Mexico City's airport as a precautionary measure as the nearby Popocatepetl volcano continued to emit vapor and ash. A solar-powered aircraft lifted off from a suburban Washington airport before dawn Saturday, embarking on the final leg of a history-making cross-country flight.