Demonstrators in the United States and other countries protested Saturday against the natural gas drilling process known as fracking. Protestors say fracing threatens public health and the environment. Participants in the "Global Frackdown" campaign posted photos on social media websites showing mostly small group, but organizer Mark Schlosberg said Saturday afternoon he thought the protests were going well and he pointed to photos showing larger demonstrations in South Africa and France as well as higher turnouts in cities in California, Colorado and New York.