This should raise some eyebrows, though I can't find much else written about it at the moment.

Judge Alito also mentioned membership in the Federalist Society, the conservative legal group, and in another group, Concerned Alumni of Princeton, founded in 1972 to oppose coeducation. On Tuesday, liberal groups dispatched researchers to look into the alumni organization and Judge Alito's role in it.

The group published a magazine, Prospect, and copies on file at the university library include articles that criticized Princeton for using student health fees to pay for abortions, for tolerating homosexuality and for supporting affirmative action policies.

The magazine also complained about Princeton officials for pressing the university's all-male student "eating clubs" to admit women.

Andrew P. Napolitano, a commentator for Fox News and a Princeton classmate of Judge Alito's who served on the organization's advisory board, said he did not recall his playing an active role in the group.

But a former student, Sally Frank, who filed a 1979 lawsuit to open the clubs to women and became a target of attacks by the magazine, said she was alarmed that Judge Alito "took credit" for the group.