Text: Buchanan can't reconcile his lifelong anti-communism with the anti-interventionist philosophy that supposedly unites his book, so when it comes to the Cold War he carves out an absurd  The extreme evil of communism, he says, warranted military action in places as far-flung as Vietnam or as minuscule as Nicaragua.
Entailment: Buchanan is a lifelong anti-communist.
Contradiction: Buchanan supports the communists.