WASHINGTON, April 3 -- The U.S. Department of Homeland Security's Immigration and Customs Enforcement issued the following news release: * * * ICE Rio Grande Valley, federal partner investigation results in a woman admitting to smuggling firearms into Mexico BROWNSVILLE, Texas - A Georgia woman entered a guilty plea April 1 to smuggling several firearms and magazines hidden in a vehicle's gas tank, following an investigation conducted by U.S. Immigration and Customs Enforcement with assistanc  more