The Post was incorrect in saying (editorial, July 20) that Philip Agee's CIA exposures are based on "on the job" information, while Louis Wolf's sources are "in the public domain."

On unchallenged evidence, the Supreme Court stated in Haig v. Agee that Agee goes to foreign countries, consults "local diplomatic circles" in them, and also "recruits collaborators and trains them in clandestine techniques designed to expose the 'cover' of CIA employees and sources." Releasing a list of alleged CIA agents in London in 1974, Agee said the list had been "compiled by a small group of Mexican comrades whom I trained (in discovery methods). Similar lists of CIA people in other countries are already being compiled. . . . We invite participation."

His three books and two periodicals, CounterSpy and Covert Action Information Bulletin (CAIB)--all listing other contributors and helpers--were launched when his "on the job" knowledge was much outdated. Wolf co-edited Agee's second book and, when legal problems arose over Agee's work on the third, took over its co-editorship with three other CAIBers.

Agee and Wolf have the same sources--and they are not Agee's CIA memories or "public records" Wolf allegedly combs. Any legislation that criminalizes only exposures by ex-government employees, leaving the CAIB apparatus free to continue its work, will have no useful effect.