Iran's Foreign Minister Abbas Araghchi has warned President Trump against interference after he said the US would come to the rescue if protesters were killed. We speak to an Iranian academic supportive of the government and hear from a protestor who wants a return of the country's monarchy that was deposed in 1979.

Also on the programme: we hear from the South Atlantic from a team trying to preserve the legacy of the explorer Sir Ernest Shackleton; and to mark the 50th anniversary of the children's show Rentaghost we speak two members of the cast, Lynda La Plante and Christopher Biggins.