June 20 marks World Refugee Day and this year's theme is solidarity with refugees. Our Perspective guest is someone who understands the plight of refugees only too well. Sally Hayden is an award-winning journalist and the author of "My Fourth Time, We Drowned: Seeking Refuge on the World’s Deadliest Migration Route". She spoke to us about the dire situation of those who try to cross the Mediterranean and end up stuck in Libyan detention centres, where they face multiple human rights abuses.