21.   Many of the embryonic stem cell lines identified by the U.S. government as eligible for federally funded research may never be useful to American scientists, laboratory officials say.

22.   Twelve Royal Bengal tigers died in an Indian zoo after eating contaminated meat, a laboratory official said Sunday.

23.   Two workers, including a night guard, were injured, laboratory officials said.

24.   Laboratory officials said there was no immediate danger to the facility.