he United States has charged a federal agent with harboring after investigators found he'd married an illegal entrant. Immigration Enforcement Agent Ramon M. Sanchez Jr., 41, was charged Tuesday with harboring an illegal alien. Sanchez married the woman, Flor Liliana Velasco Barrera, on Feb. 25 of this year. But as early as last November he knew she was a Mexican citizen who was not authorized to live or work in the United States, even though she had been in the country for the past four years, authorities said. Sanchez, whose work involves transporting detainees and doing other support services for...