2013] RECENT CASES 1169
es) chipped away at the bright-line rule that exposure to the public
erases all Fourth Amendment privacy rights, finding that installing a
GPS device on a car was a search, although it revealed no more than
the location of the vehicle on public roads.
58
Concurring opinions by
Justices Sotomayor and Alito
59
acknowledged a privacy interest in the
location of a vehicle on public roads, despite the fact that the car’s trav-
el was exposed to public view.
60
Justice Sotomayor explicitly distin-
guished gathering the location evidence via a GPS device from doing
the same “through lawful conventional surveillance techniques,”
61
thus
highlighting the ability of technology to change the privacy calculus.
To be sure, the concurring opinions in Jones are not controlling
precedent for First Amendment challenges to eavesdropping statutes
enforceable against the public. If the Supreme Court has in fact sig-
naled a willingness to recognize privacy interests enforceable against
law enforcement officers in information exposed to the public only in a
limited, likely-to-be-forgotten way, it does not follow that such infor-
mation is unambiguously private. It would be facile to posit a general
right to anonymity, such that the Illinois eavesdropping statute was
constitutionally required; both opinions understood the First Amend-
ment as primarily a source of negative liberty, the right to be free from
certain government prohibitions.
62
Nevertheless, even if the Constitu-
tion does not mandate that states protect citizens’ rights to speak
anonymously in public, “it need not be hostile to legislative attempts to
achieve positive liberty.”
63
Analyzing privacy protections of speech
that occurs in public according to a sharper standard would help en-
sure that the judiciary does not overuse its exclusive First Amendment
means, invalidation of suppressive laws, at the expense of the First
Amendment’s ends, free speech.
–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––
58
See id. at 957 (Sotomayor, J., concurring) (“[I]t may be necessary to reconsider the premise
that an individual has no reasonable expectation of privacy in information voluntarily disclosed to
third parties.”); id. at 964 (Alito, J., concurring in the judgment) (“[T]he use of longer term GPS
monitoring in investigations of most offenses impinges on expectations of privacy.”); see also
United States v. Maynard, 615 F. 3d 544, 562–65 (D.C. Cir. 2010) (using a “mosaic theory,” id. at
562, in which the whole is greater than the sum of its parts, to define a search).
59
Justice Alito was joined by Justices Ginsburg, Breyer, and Kagan.
60
See Jones, 132 S. Ct. at 948 (describing the trial court’s denial of a motion to suppress in-
formation gathered while the vehicle was “on public thoroughfares”) (quoting United States v.
Jones, 451 F. Supp. 2d 71, 88 (D.D.C. 2006)).
61
Id. at 956 (Sotomayor, J., concurring).
62
See Alvarez, 679 F. 3d at 597, 605–06 (describing the statute as a limit on the information
available to the public and thus prohibited unless narrowly tailored); id. at 610 (Posner, J., dis-
senting) (“[T]he First Amendment merely forbids Congress to abridge free speech.”). For a com-
parison between this liberty conception of free speech and an alternative equality conception, see
Kathleen M. Sullivan, Two Concepts of Freedom of Speech, 124 H
ARV
. L. R
EV
. 143 (2010).
63
Daniel J. Solove, The Virtues of Knowing Less: Justifying Privacy Protections Against Dis-
closure, 53 D
UKE
L.J. 967, 997 (2003).