A Minnesota man was arrested and charged with arson after fires at two Minneapolis mosques last week, federal prosecutors announced on Sunday.The suspect, Jackie Rahm Little, 36, was also accused of a series of acts of vandalism in January, including to a police vehicle assigned to a Somali officer, a shopping center known as the Somali Mall and the Minneapolis district office of a congressional representative, according to an affidavit filed in the U.S. District Court in Minnesota.