In what book does Noam Chomsky discuss the "linguistical organ"?

Question

I seem to only find his political/social commentary works at Borders, and none of his linguistical works. Can anyone give me the name of the book containing this concept?

Answer 1

Chomsky has discussed (without, to my knowledge, clearly defining) the "proto-linguistic organ" and the "linguistic organ" in a great number of writuings from rather early on, such as:
Problems of Knowledge and Freedom. Random House: New York 1971
or
Dialogues avec Mitsou Ronat. Flammarion, Paris 1977.

A recent paper he gave that deals with the topic is available online:
http://wwwlb.aub.edu.lb/~webcasar/Activities/PastEvents/Lecture%20texts/Spring06/BiolinguisticExplorations.htm