Nazanin Zaghari-Ratcliffe tells ITV News’ Ronke Phillips she is talking with David Lammy about the potential for the UK to create a hostage envoy similar to the US', so that people are more protected by their government when involved in hostage situations. Report by Blairm. Like us on Facebook at http://www.facebook.com/itn and follow us on Twitter at http://twitter.com/itn