1.   As the Israeli forces have pulled back, they have continued to maintain a virtual blockade of the cities they have left.

2.   Bitter demonstrations have erupted since last month when the administration imposed a virtual blockade of gasoline and cigarette shipments to American Indian tribes that refused to be taxed.

3.   Bitter demonstrations have erupted since last month when the administration imposed a virtual blockade of gasoline and cigarette shipments to Indian tribes that refused to be taxed.

4.   In addition, it is continuing its virtual blockade of Palestinian areas.

5.   Provisions under consideration for the new sanctions package are a virtual blockade on traffic headed to Serbia on the Danube River, a major route for oil imports.

6.   To make his point, New York state has imposed a virtual blockade on gas shipments to the reservations.

7.   Israel again bombed the Palestinian territories and has enforced a virtual blockade on Arafat, trapping him in the West Bank city of Ramallah.