1.   Because of client privilege, Zimmermann declined to comment on any advice he may have given Graham concerning his pledge to resist execution.

2.   Accountants worry that because they have no client privilege, as lawyers do, they could be called to testify against a client.

3.   He added that in past cases federal courts have uniformly held that the attorney client privilege cannot be overridden by a showing of need.

4.   Reached by telephone at his Washington office, Vaughn spoke briefly when asked about the prison visits, then invoked attorney- client privilege and abruptly hung up.