North Korea's ruling Workers' Party is preparing for its first conference in 30 years.<br /><br />Speculation has risen that leader Kim Jong-il will use the meeting to appoint his youngest son as his replacement. <br /><br />But reports are emerging of fierce in-fighting for control of the party - and the country.<br /><br />Al Jazeera's Tony Birtley reports on how the succession race is being viewed from neighbouring South Korea.
