91.   China is threatening airline employees and travel agents with prison to enforce a ban on discount air tickets that it fears threaten the survival of its airlines.

92.   Chinese authorities are reported to have conducted house-to-house searches to enforce the ban, which provoked some of the most violent protests in the region in several years.

93.   Chinese authorities urged local governments Thursday to enforce a ban on direct sales amid fears both the unpopular prohibition and the schemes were fueling unrest.

94.   Countries who signed the new chemical arms treaty now in effect began the painstaking task Tuesday of hammering out ways to enforce the ban on killer poisons.

95.   Egypt battles to enforce ban on female circumcision.

96.   Enforcing any ban on music-swapping will be difficult, especially if companies outside the United States take over the enterprise.

97.   Especially since late December, when riot police were deployed in the capital to enforce a ban on street protests, the whistle has become essential equipment.

98.   Education Minister Wiranto Arismunandar has urged university rectors to enforce a ban on political activity within campuses.

99.   Even if the heavy weapons ban were strictly enforced, Sarajevo would remain vulnerable.

100.   Facing increasingly violent student protests, the government has called on university rectors to enforce a ban against campus political activity, a newspaper reported Sunday.