AP - Detecting illegal drug use may one day become as simple as testing spit on a sponge. Researchers on Thursday said techniques now being developed for analyzing saliva may in the future replace many of the blood and urine tests that now are used to detect drug abuse and disease.{br}{br}View the Entire Article (http://us.rd.yahoo.com/dailynews/rss/science/*http://story.news.yahoo.com/news?tmpl=story2&u=/ap/20050218/ap_on_sc/telltale_spit){br}