MP4 : Caution is needed against the tactic of Lenin, “one step forward two steps back”FLV : Caution is needed against the tactic of Lenin, “one step forward two steps back”MP4 FOR IPOD (edge) : Caution is needed against the tactic of Lenin, “one step forward two steps back”DOC : Caution is needed against the tactic of Lenin, “one step forward two steps back”MP3 : Caution is needed against the tactic of Lenin, “one step forward two steps back”