The shift to finding new drugs for cancer. Pfizer has a development team of 10000 researchers in one location near San Diego, California, to develop new drugs for cancer even though some experts say the search for cancer drugs is devilishly complicated. The causes of cancer at the molecular level are complicated and vary even from person to person for the same cancer. Says one expert this also raises questions about the benefit to people as a large amount of resources are shifted to areas like cancer that affect fewer people than other diseases, and where the existing drugs have only prolonged life marginally, in some cases even as low as a few months at a huge cost of thousands of dollars. Tarceva for pancreatic cancer for example only prolongs life by 12 days at a cost of $3500 per month. 860 cancer drugs are being tested in clinical trials according to the trade group of the pharmaceutical industry. This is more than twice the number for heart disease and stroke, and nearly twice the number for AIDS and all other infdectious diseases combined, and nearly twice the number for Alzheimier's and all neurological dieases combined....