How Syria continued to gas its people as the world looked on

FILE PHOTO: People, affected by what activists say was a gas attack, are treated at a medical centre in the Damascus suburb of Saqba, Syria August 21, 2013. REUTERS/Bassam Khabieh/File Photo

THE HAGUE (Reuters) - In the spring of 2015 a Syrian major general escorted a small team of chemical weapons inspectors to a warehouse outside the Syrian capital Damascus. The international experts wanted to examine the site, but were kept waiting outside in their car for around an hour, according to several people briefed on the visit.

When they were finally let into the building, it was empty. They found no trace of banned chemicals.