NBC News health correspondent Robert Bazell introduces his report on a sensational new drug for the treatment of melanoma.
But then he explains that the new drug -- ipilimumab -- improves life expectancy from 6 months to 10 months. And it works well in only 20-30% of patients, the other 70-80% of patients showing no benefit at all. And it carries serious side effects, such as colitis and rheumatoid arthritis.
Is the fanfare hype? Are we celebrating too soon?