Mounting an encrypted volume presents the volume to all users on a machine

[Bruno Wolff III]

On Tue, Oct 26, 2010 at 14:18:55 -0400,
  Przemek Klosowski <przemek.klosowski at nist.gov> wrote:
> 
> Such user-differentiated authorization is provided by the filesystem 
> access rights, ACLs and SELinux attributes. Note that unlike the first 
> two mechanisms, SELinux can protect the data even for systems with 
> compromised root---as someone said, SELinux can be configured so that
> you can tell people "here's the root password; now break into my computer".

That's overstating things a bit. A root compromise is usually going to allow
working around selinux limitations.