Dear Friend of Justice,
A great many injustices have been caused by dangerous techniques used by psychotherapists who abhor scientific method — e.g., coercive interviewing of children (and adults) and the implantation of false memories.
An important new report has been published documenting the attitudes many therapists have about science:
http://www.psychologicalscience.org/journals/index.cfm?journal=pspi&content=pspi/9_2
There have also been articles about this study in the Los Angeles Times (click here) and Newsweek (click here).
-Bob