In what could eventually bring great changes to Iowa’s agricultural landscape, Tennessee researchers have cloned a dairy cow using a quicker, less-complicated method than that used to clone Dolly the sheep. Millie is the third cow cloned from adult cells born in the U-S. Iowa Senator Chuck Grassley says the research is fascinating.Grassley visited Trans Ova Genetics yesterday in Sioux Center where he saw some cloned cows. He supports the genetic research, to an extent, saying it has the potential to help medical research..Today, Pope John Paul the Second is addressing an international scientific conference in Rome on organ transplants and cloning techniques. Grassley says the emerging technology does raise red flags. He says it’s right to be cautious about cloning humans.The 18th International Congress of the Transplantation Society will focus on organ shortages and studies aimed at overcoming the problem, such as cell transplantation.