`PEACEMAKER' MOBUTU IS UNDER FIRE.

Reports that Zaire president Mobutu Sese Seko might find himself squeezed between the U.S. government which wants to continue military assistance to Angolan rebel leader Jonas Savimbi, and African leaders who seek a quick end to the Angolan civil war. Criticism of Savimbi's links to South Africa; U.S. trade with Zaire and Angola.