how do I permit ordinary users to mound SCSI devices ?

[Kevin Smith]

How do I permit ordinary users to mound SCSI devices ?

As suggested in the FAQ, section 9, I am able to allow members of 
operator group mount the cdrom by setting sysctl -w vfs.usrmount=1

This does not appear to work with SCSI devices.  (ex: /dev/da0s2)

I get the error:

 > mount -t msdos /dev/da0s2 ~/ipod
msdosfs: /dev/da0s2: Permission denied

Any ideas ?

-Kevin