Nazanin Zaghari-Ratcliffe begins new hunger strike in Iran jail

The video discusses the speaker's commitment to a hunger strike in solidarity with Nazanine, who is protesting by going down the street. The speaker emphasizes the importance of addressing the issue of British citizens detained abroad and urges Prime Minister candidates to prioritize this matter.

What does the speaker want to address regarding British citizens?

What position does the speaker believe should take action on the issue of detained British citizens?