IRAQ PULLING OUT, BUT LEAVING SPIES BEHIND, U.S. SAYS
US officials say Saddam Hussein is withdrawing most but not all of his forces from Kurdish enclaves in northern Iraq, but is leaving behind 'massive security presence' of spies and agents to reclaim his power in region; photos; map; CIA Dir John M Deutch offers generally optimistic assessment following US missile strikes, but State Department concedes that idea of two warring Kurdish leaders settling differences is now but a distant hope; Massoud Barzani has allied with old enemy Hussein and his rival, Jalal Talabani, vows to make no peace (M)