Concrete barriers are seen near the British embassy in Sanaa December 12, 2013. Security measures have been boosted around diplomatic missions in Yemen following an attack on the Defence Ministry on ... more 
Concrete barriers are seen near the British embassy in Sanaa December 12, 2013. Security measures have been boosted around diplomatic missions in Yemen following an attack on the Defence Ministry on December 5 that killed 56 people. REUTERS/Mohamed al-Sayaghi (YEMEN - Tags: POLITICS CIVIL UNREST MILITARY) less 
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Reuters | Photo By MOHAMED AL-SAYAGHI / REUTERS
Thu, Dec 12, 2013 6:21 AM EST