Well. I had my meeting with the data center admins, and there concern is
that by not changing the LIMIT, even though we take down the server and
listener jobs and NS itself, is that someone could dial into one of the
old modems hanging off of a DTC. I love my job. I am very hard pressed
to imagine this actually happening. This is not a normal means of access
for anyone besides HP and a few vendors. Should I be concerned? Are
there other solutions for preventing such access besides dropping the
limit?

After pursuing some other solutions, and having someone disavow all
knowledge of the CSL tape, I am going to propose that we $ALLOW LIMIT
SHUTDOWN,OPERATOR.SYS STARTUP,OPERATOR.SYS in SECURCON.DATA.VESOFT.
Thanks to VeSoft for suggesting this, when I called their support about
a related problem with how the original operator command file uses MPEX
ABORTJOB (when put into a job, the job killed itself...). And thanks to
the various respondents to this post and the previous post on clean
running backups.