Shulsky, a Straussian, argues that Leo Strauss would have attacked the dominant method of U.S. intelligence analysis "known as the "social-scientific method," an approach advanced by Sherman Kent, a former Yale History professor and member of the WWII-era Office of Strategic Services (the predecessor to the C.I.A.)". Shulsky critiques the social-scientific method for its potential to err by mirror-imaging. In "Silent Warfare" Shulsky and Schmitt write, "social science can provide the facts ... but policy makers have a monopoly on choosing the values to be pursued".