National Park Service spokesman Bill Line has lashed out at conservative critics of the trashing of the National Mall by attendees of the leftist One Nation Working Together rally held at the Lincoln Memorial in Washington, D.C. on Saturday.The Park Service is part of the Interior Department which is headed up by Obama appointee, former U.S. Senator Ken Salazar (Dem.-CO).Line spoke to the Daily Caller, in an unprecedented protest of coverage by the Caller and other conservative news sites and blogs that criticized the One Nation Rally for the large amounts of trash left at the Lincoln Memorial, the World...