Survivors of Assad's chemical attacks speak out

During the 13-year civil war in Syria, the forces under former President Bashar al-Assad carried out some of the most horrific chemical attacks in recent history. One of them was in April 2018, on the outskirts of Damascus, where at least 43 people were killed. The World's Shirin Jaafari visits the site and speaks with survivors, who say they need psychological support.