WASHINGTON, July 30 -- The U.S. Department of Homeland Security's Immigration and Customs Enforcement issued the following news release: * * * ICE Philadelphia arrests Mexican national with warrant for rape in Pennsylvania * PHILADELPHIA -- U.S. Immigration and Customs Enforcement's Enforcement and Removal Operations Philadelphia and Homeland Security Investigations Philadelphia, IRS Philadelphia and ATF Philadelphia arrested Silvestre Herrera-Vasquez, a 48-year-old citizen of Mexico, in Mal  more