On Jan 5, 2012, at 2:16 PM, Fred Baker wrote: > > On Jan 5, 2012, at 10:42 AM, William Herrin wrote: > >> On Thu, Jan 5, 2012 at 10:56 AM, Eric J Esslinger <eesslin...@fpu-tn.com> >> wrote: >>> His response was there is legislation being pushed in both >>> House and Senate that would require journalling for 2 or 5 >>> years, all mail passing through all of your mail servers. >> >> Hi Eric, >> >> The only relatively recent thing I'm aware of in the Congress is the >> Protecting Children From Internet Pornographers Act of 2011. > > Since you bring it up, I sent this to Eric a few moments ago. Like you, > IANAL, and this is not legal advice. > >> From: Fred Baker <f...@cisco.com> >> Date: January 5, 2012 10:46:30 AM PST >> To: Eric J Esslinger <eesslin...@fpu-tn.com> >> Subject: Re: question regarding US requirements for journaling public email >> (possible legislation?) >> >> I don't know of anything on email journaling, but you might look into >> section 4 of the "Protecting Children From Internet Pornographers Act of >> 2011", which asks you to log IP addresses allocated to subscribers. My guess >> is that the concern is correct, but the details have morphed into urban >> legend. >> >> http://www.govtrack.us/congress/billtext.xpd?bill=h112-1981 >> http://www.techdirt.com/articles/20110707/04402514995/congress-tries-to-hide-massive-data-retention-law-pretending-its-anti-child-porn-law.shtml >> >> I'm not sure I see this as shrilly as the techdirt article does, but it is >> in fact enabling legislation for a part of Article 20 of the COE Cybercrime >> Convention http://conventions.coe.int/Treaty/en/Treaties/html/185.htm. US is >> a signatory. Article 21 is Lawful Intercept as specified in OCCSSS, FISA, >> CALEA, and PATRIOT. Article 20 essentially looks for retention of >> mail/web/etc logs, and in the Danish interpretation, maintaining Netflow >> records for every subscriber in Denmark along with a mapping between IP >> address and subscriber identity in a form that can be data mined with an >> appropriate warrant. > > I can't say (I don't know) whether the Danish Police have in fact implemented > what they proposed in 2003. What they were looking for at the time was that > the netflow records would be kept for something on the order of 6-18 months. > > From a US perspective, you might peruse > > > http://en.wikipedia.org/wiki/Telecommunications_data_retention#United_States > > The Wikipedia article goes on to comment on the forensic value of data > retention. I think it is fair to say that the use of telephone numbers in TV > shows like CSI ("gee, he called X a lot, maybe we should too") is the comic > book version of the use but not far from the mark. A law enforcement official > once described it to me as "mapping criminal networks"; if Alice and Bob are > known criminals that talk with each other, and both also talk regularly with > Carol, Carol may simply be a mutual friend, but she might also be something > else. Further, if Alice and Bob are known criminals in one organization, Dick > and Jane are known criminals in another, and a change in communication > patterns is observed - Alice and Bob don't talk with Dick or Jane for a long > period, and then they start talking - it may signal a shift that law > enforcement is interested in. > Yah, but that's all "non-content records"; it's a far cry from having to retain the body of every email, which is what he asked about. As far as I know -- and I'm on enough tech policy lists that I probably would know -- nothing like that is being proposed. That said, for a few industries -- finance comes to mind -- companies are required to do things like that by the SEC, but not ISPs per se. See http://www.archivecompliance.com/Laws-governing-email-archiving-compliance.html for some details.
--Steve Bellovin, https://www.cs.columbia.edu/~smb