Fake news, synthetic video and voices that mimic real people are attacking our shared objective reality. Traditional gatekeepers were once able to construct a set of small conversations, but open platforms now allow many voices to participate and shape a conversation, including some with malicious and often secret agendas. This panel will discuss the biggest threats to the discovery of truth, how disinformation is created and promulgated, and potential ways to fight back together. Dhruv Ghulati, Factmata Sara Hudson, Investing in US Mor Naaman, Cornell Tech Aviv Ovadya, Center for Social Media Responsibility, University of Michigan Caleb Solomon, Bloomberg News (moderator)