Associated Press: An environmental group said Tuesday it wants to intervene in an anti-pollution lawsuit filed by the federal government against Kansas’ largest electric company, a case the utility hopes to settle. Sierra Club attorney Bob Eye said the group would file a request in federal court to intervene. He said the Sierra Club won’t raise new issues but offer its expertise and support the claims made against Westar Energy Inc. by attorneys for the U.S. Department of Justice and the Environmental …