Civil War Surgeon General was court-martialed for ordering end to mercury

Civil War Surgeon General was court-martialed for ordering end to mercury
http://us1.campaign-archive.com/?u=27e2f2d4d51d0311acb2ec134&id=3bf2e43bf4&e=983e259b6f

"Sometimes we must all pause and ask: Why do the pro-mercury dentists resist change so vociferously?  Why do these protectors of a primitive, polluting product put quick-and-easy profits ahead of patient health, the environment, and worker safety?  It's tempting to say such resistance is unprecedented."