11.   Archer and Sen. Phil Gramm, R-Texas, said they did not believe the impeachment cloud hanging over Clinton would necessarily impede progress on Social Security.

12.   A church hierarchy that once seemed to impede progress on fighting priestly abuse may now be in a position to flex its muscles.

13.   But black progress is impeded by such questionable figures as Steve Urkel, Mr. T, and Dennis Rodman in a wedding dress.

14.   But other scientists fear that any shift away from reducing burning of coal and oil would only impede long-term progress toward limiting the human influence on climate.

15.   But the Kashmir dispute impeded progress in the talks.

16.   But Silver canceled those plans Wednesday, saying he did not want to impede new progress in the negotiations.

17.   By intervening to help, NGOs systematically impede the progress of their enemies toward a decisive victory that could end the war.

18.   Cold air over the snow-covered regions around the western and northern Great Lakes will impede the progress of the advancing warmer air.

19.   De Leon was widely perceived to have impeded the progress of investigations into those cases.

20.   Even the unseemly forced departure of commissioner Steve Hatchell, at what could be considered a crucial time, would not impede progress, they say.