The battle against cancer just passed an important milestone, see this article from Agence France-Presse. It reports the genetic mapping of two common forms of cancer: lung and skin.
This breakthrough is expected to have important implications for diagnosis and treatment of these cancers. I suspect it also means we are not so terribly far from mapping the genetic makeup of other killer cancers.
Some day we will look back on the use of chemotherapy and be horrified that we poisoned people in the hope of killing their cancers before we killed the patients. Ditto with radiation.