title: Scientific exchanges and u.s. National security.
abstract: On 9 October 1981, in a letter addressed to The Honorable Frank Carlucci, Deputy Secretary of the Department of Defense, Mr. William D. Carey, Executive Officer and Publisher of Science, criticized statements by the Department of Defense concerning scientific exchanges, conferences, and the unclassified, open scientific literature. Mr. Carey's letter and the reply he received from Mr. Carlucci are printed here verbatim.