Cheney Reportedly Interviewed In Leak of C.I.A. Officer's Name
Informed sources say Vice Pres Dick Cheney was interviewed by federal prosecutors, who asked whether he knew of anyone at White House who had improperly disclosed identity of undercover CIA officer; say Cheney was also asked about conversations with senior aides, including his chief of staff I Lewis Libby; say Cheney was asked whether he knew of concerted effort by White House aides to name officer; it is not clear how Cheney responded; interview is part of grand jury investigation into whether anyone at White House violated federal law that makes it crime to divulge name of undercover officer intentionally; White House officials have denied that senior aides to Pres Bush disclosed name of officer, Valerie Plame, wife of former Amb Joseph C Wilson IV, to syndicated columnist Robert Novak; photo (M)
