LAS VEGAS — A Las Vegas anti-government extremist has been sentenced to 18 months in prison for possession of an unregistered machine gun. Federal prosecutors say Harold Call was sentenced Tuesday, despite the 68-year-old's attempt to withdraw his plea and fire his lawyer. Call is one of four anti-government, anti-tax-movement followers arrested in 2009 after a three-year FBI investigation into a group who believed they were separate from the United States. Agents... (GunPolicy.org)