Re: [ietf-privacy] Fwd: [Internet Policy] How a Radio Shack Robbery Could Spur a New Era in Digital Privacy

Wendy Seltzer <wendy@seltzer.org> Mon, 27 November 2017 20:55 UTC

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To: John Levine <johnl@taugh.com>, ietf-privacy@ietf.org
Cc: fredbaker.ietf@gmail.com
References: <20171127204133.17312.qmail@ary.lan>
From: Wendy Seltzer <wendy@seltzer.org>
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Date: Mon, 27 Nov 2017 15:54:40 -0500
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Subject: Re: [ietf-privacy] Fwd: [Internet Policy] How a Radio Shack Robbery Could Spur a New Era in Digital Privacy
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On 11/27/2017 03:41 PM, John Levine wrote:
> In article <396E100A-55BA-4155-A29E-92D452A45AD4@gmail.com> you write:
>> Interesting article, cross-posted from ISOC Public Policy list
> 
> Carpenter is an interesting case, but it has nothing to do with the
> Internet.

The case itself is unrelated to the Internet, but precedent it sets
regarding the continued viability of or limits on the "third party
doctrine" -- the doctrine that because the individual gave data to a
third party, law enforcement can request it from that third party rather
without a warrant -- could carry over to Internet tracking.

--Wendy

> 
> It's quite fact specific to mobile phones, which by their nature
> transmit a running history of their location to the towers which
> mobile phone companies log.  This was true even in AMPS days, at least
> the tower data part if not the logging.
> 
> The question presented is whether the cops need a warrant from a judge
> to get access to those logs or just a subpoena from law enforcement or
> from a lawyer.  The argument on one side is that it's a great deal of
> rather personal information, e.g., it told them whether Carpenter went
> to church each Sunday and when he spent the night at someone's house
> other than his own.  The argument on the other is that it's the same
> info they'd get if they had a cop tail the guy.  (You don't have to
> tell me that those arguments are not equally persuasive, but that's
> what they are.)
> 
> Lots of details here:
> 
> http://www.scotusblog.com/case-files/cases/carpenter-v-united-states-2
> 
> Here's the usually reasonable Orin Kerr making the just like a tail argument:
> 
> http://www.scotusblog.com/2017/08/symposium-carpenter-eyewitness-rule/
> 
> R's,
> John
> 
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-- 
Wendy Seltzer -- wendy@seltzer.org +1 617.863.0613
Strategy Lead, World Wide Web Consortium (W3C)
Berkman Klein Center for Internet & Society at Harvard University
https://wendy.seltzer.org/
https://www.lumendatabase.org/
https://www.torproject.org/