11.   If allowed to accumulate, Eldridge said, that soot can clog the chimney, thereby further reducing the efficiency of the furnace.

12.   Industry officials say allowing nursing homes to admit more privately paying patients will help offset the Medicaid cuts.

13.   Justice Antonin Scalia said allowing the roadblocks might also mean police could stop pedestrians without probable cause.

14.   Lindsay said allowing lawsuits against gun makers, ammunition makers and their trade groups could open the door to lawsuits against auto makers and knife manufacturers.

15.   Monsignor Tim Thorburn, chancellor of the Diocese of Lincoln, said allowing girl altar servers would cut off one of the main routes to the priesthood.

16.   Nevertheless, some industry watchers say allowing banks into the real estate business poses extra risks.

17.   Plus, they say allowing people to invest their own money makes the Social Security system subject to the vagaries of the stock market.

18.   Proponents say allowing such unions would grant important estate, child-custody and other legal rights now denied to people because of the gender of their partners.

19.   Rosenthal said allowing such catches would destroy the fishery.

20.   Some administrators say allowing a religious invocation sends a message to students that scofflaws are acceptable.