When the pipes are blocked, you call a plumber. That works for your veins as well as your drains. One method of opening veins that are clogged is by inserting a stent. Two of these helped open arteries in the heart of President Bill Clinton on February 12th. On the Medical Spotlight, Dr. R. David Anderson of UF and Shands explains to TV 20's David Snyder how today's stents are better than ever.