Penguin, link didn't work for me either.
But this should get you there:
go to: <a href="http://www.gpo.gov/nara/cfr/index.html" target="_blank">http://www.gpo.gov/nara/cfr/index.html</a>
click on "serarch the federal register" link
when in the federal register database page,
click on 2001 for year and
search for "armed law enforcement officer"
on completed search page, click on aircraft operator security link
that should get you the complete FAA rule with comments.