Audit messages on console & in logwatch

[David D. Hagood]

Having recently updated to FC4 and then to rawhide, I am now getting 
lots of messages on any console of the form:

audit(1120021201.349:0): user pid=xxxx uid=0 length=100 msg='PAM 
accounting: user=root exe="/usr/sbin/crond" (hostname=?, addr=?, 
terminal=cron result=Success)'

These also show up in /var/log/messages, and are thus picked up by logwatch.

How do I tell the system to stop wasting my time with notifications 
about normal operations?