American soldiers were used by the U.S. military as guinea pigs in the testing of a variety of drugs like nerve gas, incapacitating agents like BZ, tear gas, barbiturates, tranquilizers, narcotics and hallucinogens like LSD. Tests were conducted up until the late 1960’s at what is now the Edgewood Chemical Biological Center. Veterans involved have begun a lawsuit seeking compensation for harm that is alleged to have been suffered as a result of the tests. [CNN] The story of the tests provides an example of the kind of situation in which conscientious objection by health care workers, had it occurred, might now, in retrospect, seem to have been justified.