welcome to our viewers on pbs in america and around the globe. the united states says it did everything it could to minimise civilian casualties during a raid in syria in which the leader of the islamic state group was killed. the president said that abu ibrahim al-qurayshi, also known as hajji abdullah, blew himself up, along with four members of his family, as us specialforces approached the building. 13 people, including children, were killed but no us casualties were reported. the bbc�*s state department correspondent barbara plett usher reports. in a corner of north—west syria, where a forgotten conflict simmers, america reminded the islamic state group that its leaders were still a target. the raid took place in the dead of night and lasted two hours. us special forces landed