U.S. Clams Up on Nicaragua

WASHINGTON — The Reagan Administration has shelved plans to release a document outlining an alleged Nicaraguan government “campaign of disinformation” aimed at undercutting congressional support for anti-communist rebels, U.S. officials said today.

The Administration had promised a week ago to declassify and release information about Sandinista efforts to influence congressional opinion against President Reagan’s proposed aid package for the contras. But U.S. officials, who asked not to be identified, said today that the Administration has decided not to make the document public partly because of harsh criticism expressed by the chairman of the Senate Select Committee on Intelligence, Sen. Dave Durenberger (R-Minn.).