A BRIDGE TOO FAR: Elements of the CIA are on the move. . . . Director Robert M. Gates, who wants to make the agency more responsive to requests from the President and other policy-makers, has decided to move top intelligence officers from suburban Langley, Va., to new digs in downtown Washington. One CIA official said the move is designed to ease the "across the river syndrome"--the gulf between the physically isolated intelligence bureaucracy and the clients in the White House, State Department and other agencies they serve. . . . The new offices will be in a secure building on F Street a few blocks from the White House.