Seyed Hossein Mousavian

President Donald Trump's decision to dump the nuclear deal with Iran has presented the Tehran Government with a choice. Does it make a concerted effort to keep the agreement intact along with the other signatories, or does it ramp up its nuclear programme and hang the consequences? HARDtalk's Stephen Sackur speaks to a former spokesman for Iran's nuclear negotiations team - Seyed Hossein Mousavian. In the face of intense pressure from the US, Israel and Saudi Arabia how will Iran respond?