From mboxrd@z Thu Jan  1 00:00:00 1970
From: Miloslav Trmac <mitr@redhat.com>
Subject: Re: Help on Audit Rules
Date: Thu, 18 Oct 2012 07:29:05 -0400 (EDT)
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----- Original Message ----- 
> So my question is why normal users audit event logs cant be captured
> as a "type=USER_TTY" , where as root logs can be captured
> similarway.
USER_TTY is sent by the process that accepts the keyboard input.  Unprivileged users are not allowed to send audit records (otherwise they would be able to fill the queue and/or the log partition, causing a DoS), so the USER_TTY record is discarded.

Even for unprivileged users you should have the type=TTY records, although they are noticeably more difficult to interpret.
   Mirek