A path-breaking new study by Robb Willer, a Cornell doctoral candidate in sociology, finds that, as Willer tells the Cornell University News Service, "if you made men more insecure about their masculinity, they . . . tended to support the Iraq war more": Willer administered a gender identity survey to a sample of male and female Cornell undergraduates in the fall of 2004. Participants were randomly assigned to receive feedback that their responses indicated either a masculine or a feminine identity. While women's responses were unchanged regardless of the feedback they received, men's reactions "were strongly affected by this feedback,"...