11.   The ban has come to symbolize what Palestinians despise about the deal.

12.   The ban came about because as one of its tactics of war, Azerbaijan has blockaded Armenia, which deprives the small republic of oil and gas.

13.   The ban has come to be seen in a new light as the promise of research into embryonic stem cells has grown.

14.   The new ban comes after a scandal over contamination of eggs, poultry, beef and dairy products.

15.   Then the ban suddenly came down late last week.

16.   Other commentators believe China may be playing for time to finish its own series of nuclear tests before any ban comes into force.

17.   A one month amnesty began Sunday for owners of small-caliber handguns to turn in their weapons before a near total ban comes into force.

18.   Beijing has also hinted it may carry out a final series of tests before any ban comes into force.

19.   Beijing has also hinted it may carry out a final series of tests before any ban came into force.

20.   But the ban has come under increasing criticism as marriage, trade and investment ties grow.