This symposium article is the second of two on regulation of government efforts to obtain recorded information for criminal prosecutions. More specifically, it explores the scope and regulation of "transaction surveillance," ...

In the history of the Supreme Court, William Rehnquist may have been the least friendly justice toward the view that the Fourth Amendment should be read expansively. Even he, however, might have interpreted the amendment ...

In the Supreme Court's recent decision in United States v. Jones, a majority of the Justices appeared to recognize that under some circumstances aggregation of information about an individual through governmental surveillance ...

The government's ability to obtain and analyze recorded information about its citizens through the process known as data mining has expanded enormously over the past decade. Although the best-known government data mining ...