On Tue, 21 Oct 2008 16:57:12 -0400
Michael StJohns <mstjohns(_at_)comcast(_dot_)net> wrote:
...
Classified documents have this thing called paragraph marking. Each
paragraph within a document is marked with the highest level of data
within the paragraph. A page is marked with the highest level of
data in any paragraph on that page. The overall document is marked
with and protected at the highest level of data within the document.
Those who want the gory details should see
http://www.fas.org/sgp/isoo/marking.pdf
--Steve Bellovin, http://www.cs.columbia.edu/~smb
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