Satellite image shows what Amnesty International calls 20 possible guard posts in North Korea's Ch'oma-Bong valley

 
Satellite image shows what Amnesty International calls 20 possible guard posts in North Korea
What human rights organisation Amnesty International calls 20 possible guard posts are seen in North Korea's Ch'oma-Bong valley, in this satellite image released by Amnesty International in London on March 7, 2013. REUTERS/Digital Globe 2013/Amnesty International/handout