ADVERTISEMENT A Norwegian student in his 20s was arrested on suspicion of spying for Russia and Iran while working as a guard at the US Embassy in Oslo, authorities in Norway have said. The man, who has not been identified, was ordered to be held in custody for four weeks. He runs a security company jointly with a dual national of Norway and an unspecified eastern European country, according to Norwegian public broadcaster NRK. Oslo police said Friday they would review the company's operating