Members of the special police battalion enter the Alcacuz Penitentiary Center to regain control of the penitentiary in Rio Grande do Norte, Brazil, on January 18, 2017. Brazilian authorities said Wednesday they are deploying 1,000 troops to &quot;clean out&quot; arms and cellphones from restive prisons while police struggled to end a deadly gang face-off at Alcacuz. The soldiers were being brought in to respond to a &quot;national emergency&quot; in the badly overcrowded prison system, Defense Minister Raul Jungmann said. (ANDRESSA ANHOLETE/AFP/Getty Images)