Michael Douglas went on Letterman to discuss his situation. The stage 4 throat cancer he is currently living with is being taken care of, and he is maintaining positive. Chemotherapy has already started and he's been given an 80% success rate. The Wall Street 2: Money Never Sleeps star is embarking on this journey with family and friends by his side. In addition to his battle, Douglas will be a part of the Stand Up 2 Cancer telethon which will be airing on all major networks on September 10th. The last time this telethon aired, they raised over $100 million! Make sure you tune in and join Douglas in the fight against cancer.