Nathan is founder of the Citizens and Technology Lab (formerly CivilServant), a public-interest research group at Cornell that organizes citizen behavioral science and behavioral consumer protection research for digital life. CAT Lab has worked with communities of tens of millions of people on reddit, Wikipedia, and Twitter to test ideas for preventing harassment, broadening gender diversity on social media, responding to human/algorithmic misinformation, managing political conflict, and auditing social technologies. Nathan is also pioneering industry-independent evaluations on the impact of tech platform policies in society.