For the past 25 years, the central focus of the anti-vivisection movement in the U.K. (and U.S.) has been that animal use is "bad science." The result? Animal use in vivisection in the U.K. is at an all-time high. The weight of scientific thinking is that animal use is "good science."
Although we should continue to make the scientific argument (just as we should point out the health problems involved in eating animal foods when we talk about veganism), we need to refocus the primary effort and be clear and unashamed about it: we cannot morally justify the use of animals in research or for any other purpose.
The issue is not whether it's good science or bad science. The issue is whether it's morally right. And it's not.
http://www.guardian.co.uk/commentisfree/2012/jul/12/animal-testing-safer-methods