SCREENING FOR CANCER. DOCTORS TEND TO VISUALIZE MANY DISEASES AS A LITTLE ARMY THAT STARTS SMALL, ENLISTING, AT MOST, A SOLDIER OR TWO. IF THEY CAN LOCATE AND FLUSH OUT THE ENEMY WHEN IT'S ONLY TWO OR THREE STRONG, THEY FIGURE THEY CAN GET IN THERE EARLY WITH NUCLEAR WARFARE AND WIN THE WAR, EVEN BEFORE IT GETS GOING. THE BEST WAY TO ROOT OUT THESE ERRANT CELLS, THEY'VE CONVINCED US, IS WITH A SCREENING TEST. BECAUSE CANCERS GROW BEFORE YOU GET ILL OR EXHIBIT SYMPTOMS, THEY HAVE BEEN THE MAIN TARGET OF CATCH-IT-EARLY WARFARE. |