11.   The three ministers will obstruct efforts on the single market to cut red tape and combat AIDS in underdeveloped countries.

12.   They also say that there are less risky ways to make forests safe, like logging, but that environmentalists have obstructed government efforts to thin trees.

13.   These problems have also obstructed rescue efforts.

14.   This is exactly what respondents are trying to do here, and nothing in ERISA is designed to obstruct such efforts.

15.   To be sure, the Vietnamese government for many years obstructed efforts to discover the fate of MIAs.

16.   To shield these supporters, Kabila obstructed U.N. efforts to investigate alleged tribal massacres.

17.   We cannot permit anyone to obstruct our effort of getting to the bottom of this.

18.   A Foreign Ministry spokesman said a U.S. missile defense would endanger the global strategic balance, spark an arms race and obstruct efforts to control the spread of weapons.

19.   A Foreign Ministry spokesman said the system would endanger the global strategic balance, spark an arms race and obstruct efforts to control the spread of weapons.

20.   Annan said the Cambodian government was obstructing efforts to create a framework that would guarantee an impartial and fair trial and meet international standards.