Cancer treatments grow more high-tech: 'Smart bomb' drugs, immune boosters are seeing success

CHICAGO - New research shows a sharp escalation in the weapons race against cancer. Scientists are reporting success with several high-tech approaches long dreamed of but not possible or proven to work until now. At a weekend conference of more than 30,000 cancer specialists in Chicago, researchers described new tools to make the immune system attack a broad range of cancers, new "smart bomb" drugs that target the disease while sparing healthy cells, and new ways to predict which patients will benefit from which treatments.