US v. Warshak, 631 F. 3d 266 - Court of Appeals, 6th Circuit 2010 - Google Scholar - 0 views
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While a letter is in the mail, the police may not intercept it and examine its contents unless they first obtain a warrant based on probable cause. Ibid. This is true despite the fact that sealed letters are handed over to perhaps dozens of mail carriers, any one of whom could tear open the thin paper envelopes that separate the private words from the world outside. Put another way, trusting a letter to an intermediary does not necessarily defeat a reasonable expectation that the letter will remain private. See Katz, 389 U.S. at 351, 88 S.Ct. 507 ("[W]hat [a person] seeks to preserve as private, even in an area accessible to the public, may be constitutionally protected."). Given the fundamental similarities between email and traditional forms of communication, it would defy common sense 286*286 to afford emails lesser Fourth Amendment protection. See Patricia L. Bellia & Susan Freiwald, Fourth Amendment Protection for Stored E-Mail, 2008 U. Chi. Legal F. 121, 135 (2008) (recognizing the need to "eliminate the strangely disparate treatment of mailed and telephonic communications on the one hand and electronic communications on the other"); City of Ontario v. Quon, ___ U.S. ___, 130 S.Ct. 2619, 2631, 177 L.Ed.2d 216 (2010) (implying that "a search of [an individual's] personal e-mail account" would be just as intrusive as "a wiretap on his home phone line"); United States v. Forrester, 512 F.3d 500, 511 (9th Cir.2008) (holding that "[t]he privacy interests in [mail and email] are identical"). Email is the technological scion of tangible mail, and it plays an indispensable part in the Information Age.
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Over the last decade, email has become "so pervasive that some persons may consider [it] to be [an] essential means or necessary instrument[] for self-expression, even self-identification." Quon, 130 S.Ct. at 2630. It follows that email requires strong protection under the Fourth Amendment; otherwise, the Fourth Amendment would prove an ineffective guardian of private communication, an essential purpose it has long been recognized to serve. See U.S. Dist. Court, 407 U.S. at 313, 92 S.Ct. 2125; United States v. Waller, 581 F.2d 585, 587 (6th Cir.1978) (noting the Fourth Amendment's role in protecting "private communications"). As some forms of communication begin to diminish, the Fourth Amendment must recognize and protect nascent ones that arise. See Warshak I, 490 F.3d at 473 ("It goes without saying that like the telephone earlier in our history, e-mail is an ever-increasing mode of private communication, and protecting shared communications through this medium is as important to Fourth Amendment principles today as protecting telephone conversations has been in the past.").
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If we accept that an email is analogous to a letter or a phone call, it is manifest that agents of the government cannot compel a commercial ISP to turn over the contents of an email without triggering the Fourth Amendment. An ISP is the intermediary that makes email communication possible. Emails must pass through an ISP's servers to reach their intended recipient. Thus, the ISP is the functional equivalent of a post office or a telephone company. As we have discussed above, the police may not storm the post office and intercept a letter, and they are likewise forbidden from using the phone system to make a clandestine recording of a telephone call—unless they get a warrant, that is. See Jacobsen, 466 U.S. at 114, 104 S.Ct. 1652; Katz, 389 U.S. at 353, 88 S.Ct. 507. It only stands to reason that, if government agents compel an ISP to surrender the contents of a subscriber's emails, those agents have thereby conducted a Fourth Amendment search, which necessitates compliance with the warrant requirement absent some exception. In Warshak I, the government argued that this conclusion was improper, pointing to the fact that NuVox contractually reserved the right to access Warshak's emails for certain purposes. While we acknowledge that a subscriber agreement might, in some cases, be sweeping enough to defeat a reasonable expectation of privacy in the contents of an email account, see Warshak I, 490 F.3d at 473; Warshak II, 532 F.3d at 526-27, we doubt that will be the case in most situations, and it is certainly not the case here.
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Accordingly, we hold that a subscriber enjoys a reasonable expectation of privacy in the contents of emails "that are stored with, or sent or received through, a commercial ISP." Warshak I, 490 F.3d at 473; see Forrester, 512 F.3d at 511 (suggesting that "[t]he contents [of email messages] may deserve Fourth Amendment protection"). The government may not compel a commercial ISP to turn over the contents of a subscriber's emails without first obtaining a warrant based on probable cause. Therefore, because they did not obtain a warrant, the government agents violated the Fourth Amendment when they obtained the contents of Warshak's emails. Moreover, to the extent that the SCA purports to permit the government to obtain such emails warrantlessly, the SCA is unconstitutional.
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A 2010 decision by the U.S. 6th Circuit Court of Appeals that I had missed up to now. It finds the Stored Communications Act's section that excuses email in the possession of an ISP for more than 180 days from the 4th Amendment's judicial warrant clause. There may yet be hope for cloud computing in the U.S.