Security officers in Moscow raided the offices of Alexei Navalny, the most prominent foe of President Vladimir Putin and the governing United Russia party.His Foundation for Fighting Corruption organization has produced reports alleging corruption by top figures including Prime Minister Dmitry Medvedev.Navalny was taken from the office by officers of the federal court bailiffs’ service that forced their way into the officie. But the service later said he hadn’f been detained.