Sir Paul McCartney has launched a new People for the Ethical Treatment of Animals (PETA) campaign which hopes to put a stop to the use of animals in medical research. The former beatle, who is a staunch vegetarian and animal rights campaigner, has condemned a number of charitable British research bodies for refusing to seek out other testing methods. MCCartney says, "Sometimes people place too much faith in people in white lab coats and assume that there's a need for animal testing just because it has been going on for so long. "I believe this to be a holdover from the dark age of medical science, and more enlightened scientists nowadays believe they can get more reliable results with more modern methods. "Vivisection has long been presented as a solution to health problems, but trying to mimic human diseases in animals is a costly, cruel diversion. If the amount of money poured into animal experimentation was spent instead on prevention, we'd have much better results to show."