The ABA Journal Online reports that US Atty General Gonazales and other top officials like Condolezza Rice do not use e-mail. The article states that White House officials may be concerned because of aggressive prosecutions based upon e-mail. Hmmm. . . . Makes you wonder what they have to hide, especially given the Attorney General's less than candid statements regarding his personal involvement in the firing of the 8 U.S. Attorneys.
You can find the article at http://www.abanet.org/journal/ereport/m30email.html