Jo Robertson is a therapist, educator and researcher. Earlier this year, she and others presented a petition to parliament - signed by over 10,000 - calling for internet service providers to strengthen filters on all illegal sexual behaviour. This afternoon, she'll appear before a select committee to submit in person. She talks with Susie about legislation changes she wants to see. She also discusses the proposed new law in Australia, to ban social media for under 16-year-olds