On This Edition of The Zoomer Week in Review:It's the 50th Anniversary of the Kennedy Assassination. Libby is joined by Rush DeNooyer, producer of the documentary "Cold Case JFK", which uses modern forensics to determine that there was just one shooter.Plus, American authorities changed the guidelines for prescribing cholesterol- busting drugs called statins. Now instead of focusing on lowering bad cholesterol, and monitoring those levels regularly, doctors are being told to put more patients on medications like Crestor and Lipitor. How do you know if you should be taking these drugs? Cardiologist Dr. Beth Abramson is here with her advice.