This took courage: With rabid animal rights activists in the UK having gone so far as to threaten to assassinate animal researchers, this study issuing a clarion call to encourage proper, humane, and rigorously regulated scientific and medical research with primates is most welcome. Tremendous amounts of human suffering can be, and has been, eliminated due to animal research. To denigrate it as mere “vivisection” is a tremendous disservice to the researchers who are seeking to alleviate human suffering, and to science.