(Posted: 08/07/2012) - The federal government says its graphic ad campaign showing diseased smokers has been such a success that it is planning another round next year to nudge more Americans to kick the habit.

(Posted: 08/02/2012) - Three studies, which included NCI funding, bolster the theory that specific stem cells within tumors are responsible for a cancer's persistent growth. When cancers are treated, tumors may shrink but then come roaring back. Now studies on three different types of tumors suggest a key reason why: The cancers are fueled by stem cells thatchemotherapy drugs don't kill.