Check out this great post by Neuroskeptic, which addresses the issue of trust between scientists. While scientists are supposed to be skeptical of conclusions implied from published results, we need to be able to trust the methods and results themselves.
Science fraud, questionable research practices, and replication have got a lot of attention lately. One issue common to all of these discussions is trust. Scientists are asking: can we trust other scientists to be honest? Is peer review based on trust? Is the act of discussing these issues itself eroding trust? What can we do to restore trust?