71.   President Clinton tightened restrictions on travel to Cuba last year, barring charter flights to the island and other forms of direct travel.

72.   A year after the accident, Italy and the United States reached an accord for tightening restrictions of the low flights.

73.   Before the crackdown, Shanghai already had tightened restrictions in December, outlawing even licensed dogs from public streets.

74.   China has tightened restrictions on Internet use, ordering bars that offer access to register users with the police, according to state media.

75.   Clinton imposed the ban, tightening trade restrictions that had been in force for several years, in a bid to increase economic pressure on Tehran.

76.   China has tightened restrictions on joining the Tibetan Buddhist clergy in a campaign to root out the influence of the Dalai Lama.

77.   Disease experts from the United States and elsewhere arrive in a city where dozens have died from the virulent Ebola virus as the Zairian government further tightens quarantine restrictions.

78.   Earlier in the week, Russia lodged a similar complaint and said it would tighten visa restrictions for Poles in retaliation.

79.   Dutch diplomats said they were satisfied with the current quota system and saw no reason to tighten the restrictions.

80.   Erekat said he told Peres that Israel is not implementing the truce plan, firing at Palestinians and tightening restrictions instead of easing them.