CLEAN : IS jihadists likely made mustard gas used in Syria: OPCW chief

The video discusses the analysis of substances found in Syria and Iraq, which may have been self-produced and weaponized, posing significant concerns. The presence of foreign fighters in these regions adds to the worry, as they might return to their home countries, potentially spreading the threat.

What findings were suggested about the substance analyzed in the laboratories?

How is the quality of the substance described in the analysis?

What concerns are raised regarding the weaponization of the substance?

What is the significance of foreign fighters in relation to the substance?

What potential future actions of foreign fighters are implied in the text?