Machan, Schwartz, and Foreign Policy
Part V of my series on Peter Schwartz's new foreign policy book has additional follow-up discussion. Take a look at this exchange with Kenneth R. Gregg, which discusses "Schwartz' Platonism" and the more context-sensitive foreign policy contributions of Tibor Machan. There's additional discussion here.
Also, check out this SOLO HQ discussion, which deals with rationalist tendencies in the writings of some Randians.