Palazzolo, Joe. "Sixth Circuit: No Expectation of Privacy in Cell Phone GPS Data." The Wall Street Journal, August 14, 2012.
From the article: "The U.S. Court of Appeals for the Sixth Circuit ruled that the
Drug Enforcement Administration committed no Fourth Amendment
violation in using a drug runner’s cellphone data to track his whereabouts. The
DEA obtained a court order to track Melvin Skinner’s phone, after
finding his number in the course of an investigation of a large-scale
drug trafficking operation." Read more