LGBT rights: The importance of 'changing hearts and minds'

Our Perspective guest is Björn van Roozendaal from the International Lesbian, Gay, Bisexual, Trans and Intersex Association (ILGA). The association aims to ensure a world where dignity, freedoms and full enjoyment of human rights are protected, regardless of people's sexual orientation. It's a tough fight at the moment with major advances in some countries in favour of LGBT rights, while others roll back policies. Our guest tells us about the importance of "changing hearts and minds".