"It was indeed part of a larger program. For a long period of time [Daesh] was trying to [create] mustard gas. They have also tried to produce a nerve agent, apparently unsuccessfully for the time being. And of course, [Daesh] has produced and used chlorine on many occasions as a chemical warfare agent. So this is indeed part of a larger chemical weapons program," he said.
Media reports indicate that Iraqi special forces obtained documents detailing Daesh's experiments with thallium and nicotine during the large-scale operation aimed at liberating Mosul. The second largest city in Iraq spent nearly three years under the group's control. The papers believed to be authentic were recovered from the University of Mosul.
Dr. Shoham added that terrorists would not require "a high level of sophistication" to use these substances in a potential attack.
The expert further said that Daesh has most likely shared the information on its tests with its operatives in the Middle East and beyond.
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