1.   Already, analysts say, commercial spy craft are so numerous and competitive as to undercut governmental efforts to curb what they disseminate.

2.   Any impression of black-tied swells clinking champagne glasses and scarfing shrimp canapes could undercut such efforts.

3.   But a recent spate of them is undercutting efforts by the Sudanese government to soften its image internationally.

4.   But critics shot back that the company is trying to undercut federal efforts to regulate tobacco as a drug and state efforts to penalize sales to minors.

5.   But it underscores the diversity among anti-tobacco groups and experts that often undercuts their efforts to counter the money and lobbying skills of the tobacco companies.

6.   But just as important, drilling in the Arctic, they argue, would undercut efforts to persuade other countries to preserve wild spaces.

7.   Clark Reynolds, an economics professor at Stanford University, said the proposals would anger many Americans and undercut efforts to involve Mexican immigrants more fully in U.S. politics.

8.   Expanding the area they control without having to fight for it allows the rebels to undercut American efforts to reach a negotiated settlement to the war.

9.   Fernandes was voicing concerns that have long undercut American efforts to persuade India to forswear nuclear weapons.

10.   Having armed officers would also undercut efforts to rid the school of all weapons, he argued.