More than a 150,000 Americans will die of lung cancer this year. It's the chief cause of cancer deaths for both men and women. While surgery is usually the preferred treatment, sometimes cancer cells remain after surgery. Researchers are testing a drug called angiogenesis that essentially starves cancer tumors, making it easier to remove the entire tumor. All tumors need a blood supply to survive. So they literally trick the body by sending out a signal to grow new blood vessels to feed any tumors in the lungs. In cancer cases, angiogenesis is know to take on a sinister role.