Edition: U.S. / Global  MIDEAST TURMOIL: INTELLIGENCE; Officials
Say Qaeda Suspect Has Given Useful Information  Published: April
26, 2002  American officials said today that they had verified
the accuracy of some of the information provided by a captured
senior leader of Al Qaeda, and expressed cautious optimism that
he would eventually divulge more detailed information about the
terrorist network and the whereabouts of its surviving leaders,
including Osama bin Laden.  The suspect, Abu Zubaydah, is the
most senior Qaeda figure captured since Sept. 11.  ''This is a
work in progress,'' said an American official, describing the
interrogations of Mr. Zubaydah, which are being carried out by
the C.I.A. and the F.B.I. at an undisclosed location overseas.
''Some of what he says is hard to confirm or deny, but other
information is proving to have some accuracy to it. Some of it
is proving to be quite valuable. These people who tell you that
he's just playing with us, that's being excessively cynical.''
Few Qaeda l