Synthetic urine, which sounds like something more likely to generate snickers than sales, is turning into a small success for a Kansas company. Dyna-Tek Industries, a company bought by Kevin Dyches and his wife, Sandra, five years ago, has developed synthetic urine for the research industry. One of their first customers is the Centers for Disease Control and Prevention (news - web sites), which made a big purchase this summer and has hinted it could be a major buyer long into the future. Other research institutions and laboratories are also looking into Dyna-Tek's product, called Surine. "We have been very...