U.S. President Donald Trump says Iran has proposed negotiations after his threat to strike the Islamic Republic as an ongoing crackdown on demonstrators has led to hundreds of deaths. But while Iran says it is ready for negotiations based on 'mutual respect', it has warned it is 'fully prepared for war'. In the meantime, the son of the ousted shah syas he is 'prepared to return' - something that looks easier said than done. FRANCE 24's Philip Turle tells us more as protests enter their third week.