The <a href="https://en.wikipedia.org/wiki/Federal_government_of_the_United_States" id="mwtA" rel="mw:WikiLink" title="Federal government of the United States">United States government</a> establishes the <a href="https://en.wikipedia.org/wiki/National_Security_Agency" id="mwtQ" rel="mw:WikiLink" title="National Security Agency">National Security Agency</a>, or NSA.