You might not think of the Fourth Amendment while you’re using Facebook and other online tools, but you probably should.
What we do in this realm will have an impact on our lives as citizens. Norms of privacy we establish for convenience or to up our friend counts will be the norms of privacy that are applied on much weightier issues.
Without a reasonable expectation of privacy, there will be no warrant requirement for law enforcement to obtain that information. This analysis is troubling; sharing information with your friends should not mean that you expect it to be shared with law enforcement.
— Margot Kaminski, executive director of Yale’s Information Society Project