Trump axes Iran nuclear deal - analysis

Describing it as "defective at its core" Donald Trump has pulled the United States out of the Iran nuclear deal. Mr Trump has been highly critical of the 2015 accord, under which Iran limited its nuclear activities. The US president said they would not be sticking with the 2015 deal. Dr Lina Khatib is the head of the Middle East and North Africa Programme at Chatham House in London. She talks to Susie Ferguson.