&gt; the NSA doesn&#x27;t have a domestic email archive or even domestic email envelope metadata<p>&quot;Eventually, the NSA gained authority to &quot;analyze communications metadata associated with United States persons and persons believed to be in the United States&quot;, according to a 2007 Justice Department memo, which is marked secret.&quot;<p><a href="http:&#x2F;&#x2F;www.theguardian.com&#x2F;world&#x2F;2013&#x2F;jun&#x2F;27&#x2F;nsa-data-mining-authorised-obama" rel="nofollow">http:&#x2F;&#x2F;www.theguardian.com&#x2F;world&#x2F;2013&#x2F;jun&#x2F;27&#x2F;nsa-data-mining...</a><p>&quot;The system has the capacity to reach roughly 75% of all U.S. Internet traffic in the hunt for foreign intelligence, including a wide array of communications by foreigners and Americans. In some cases, it retains the written content of emails sent between citizens within the U.S. and also filters domestic phone calls made with Internet technology.&quot;<p><a href="http:&#x2F;&#x2F;www.wsj.com&#x2F;articles&#x2F;SB10001424127887324108204579022874091732470" rel="nofollow">http:&#x2F;&#x2F;www.wsj.com&#x2F;articles&#x2F;SB100014241278873241082045790228...</a>