51.   The government blocked all mobile telephone communication in Tehran in an effort to prevent speedy conversations among students, journalists and would-be saboteurs, officials said.

52.   The government can block sales of certain equipment to these countries.

53.   The U.K. government blocked National Power Plc and PowerGen Plc from buying two regional utilities in an unexpected move it said would prevent unfair competition in the electricity market.

54.   The U.K. government blocked the sale on the grounds that it would give BT too dominant a market position.

55.   The U.K. government blocked National Power Plc and PowerGen Plc from buying regional electricity distributors after concluding the acquisitions would hurt competition.

56.   The week before last, the government blocked part of another Protestant parade, in Portadown, west of Belfast, from going through the Catholic area of Drumcree.

57.   They also say the government has blocked some foreigners from contacting their embassies or consulates.

58.   This allows the government to block plans that take settlements provocatively close to Palestinian towns or other sensitive areas.

59.   Under diplomatic pressure from the United States, the Czech government blocked those sales.

60.   U.S. officials, meanwhile, say the Cuban government has been blocking Cubans with proper visas from emigrating.