Government researchers working to cure Parkinson’s, Alzheimer’s and other diseases are currently restricted from using human cells in their labs, but an effort led by Iowa Senator Tom Harkin seeks to change that. He says researchers should be allowed to use embryonic stem cells for research.Harkin says it’s wrong to deny researchers all the tools necessary to find what causes Parkinson’s and other debilitating diseases.Abortion opponents have successfully fought to ban the use human “stem cells” in government-funded research, as they say it creates another market for aborted fetuses. Harkin hopes to overturn that ban under what he calls “strict ethical guidelines” that allow the use of the cells.”Stem cells” are extracted from discarded human embryos. The “Stem Cell Research Act” will be debated on the Senate floor next month.