The original content of Democracy Now! Headlines appears under the Creative Commons BY-NC-ND 3.0 License (United States). For more, including their other shows and media, visit www.democracynow.org. November 10, 2010 EPA Subpoenas Halliburton over Drilling Chemicals ------------------------------------------------- The U.S. Environmental Protection Agency, meanwhile, has subpoenaed Halliburton to disclose the chemicals used in its gas drilling practice known as hydraulic fracturing. The EPA says Halliburton is the lone of nine companies to ignore a request for information on the chemicals issued earlier this year. The EPA is carrying out a national study on how hydraulic fracturing is affecting the nation’s water supplies. .