I doubt it. There may be very few contracts that
require this sort of
thing, but honestly, if the company scrapping the equipment was that worried
about it, they'd scrap it themselves. I have heard that NSA does this, and
that further they (to paraphrase) "slag their disks and post armed guards
around the slag."
it's true; a friend has a CDC 1700, formerly NSA property...
and nothing that could hold software was part of the deal
(although I think he got to keep the core).
-dq