21.   PORTUGAL-PERRY, U.S. defense secretary says peacekeepers in Bosnia face harder tasks ahead.

22.   But convincing countries like Iraq, Libya and Sudan to make peace with Israel may be a harder task.

23.   Serena Williams said Graf would face a harder task to beat Venus.

24.   They reconvene Saturday and face the harder task of deciding how high to set their overall production ceiling.

25.   Won acclaim for role in success of Sydney Olympics but has harder task as coordinator for troubled Athens Games.