<blockquote>Hemisphere isn’t a “partnership” but rather a product AT&amp;T developed, marketed, and sold at a cost of millions of dollars per year to taxpayers. No warrant is required to make use of the company’s massive trove of data, according to AT&amp;T documents, only a promise from law enforcement to not disclose Hemisphere if an investigation using it becomes public.</blockquote>
via <a href="http://www.thedailybeast.com/articles/2016/10/25/at-t-is-spying-on-americans-for-profit.html">AT&amp;T Is Spying on Americans for Profit - The Daily Beast</a>.