In this month's Taxcast: Tax justice, women and UN human rights conventions: how we may be beginning to hold governments to account. Also: we discuss scandal-hit Facebook's checks on whether overseas influencers are funding political ads in the United States and why they won't work. And is it time for a new model? How Mark Zuckerberg could become a hero. Plus: Norway does the responsible thing and decides not to invest its sovereign wealth fund in private equity. And India’s decade-long battle to collect back taxes from Vodafone runs into potential conflicts of interest at the highest political levels.