A protected witness guarded by U.S. Marshals armed with a machine pistol and a shotgun.
<a href="//commons.wikimedia.org/wiki/United_States_Marshals_Service" title="United States Marshals Service">United States Marshals Service</a>
<a rel="nofollow" class="external free" href="https://www.usdoj.gov/marshals/careers/images/witsec_staged1.jpg">http://www.usdoj.gov/marshals/careers/images/witsec_staged1.jpg</a>