On any given night, more than 450,000 people in the United States are locked up in jail simply because they don't have enough money to pay bail. The sums in question are often around $500: easy for some to pay, impossible for others. This has real human consequences -- people lose jobs, homes and lives, and it drives racial disparities in the legal system. Robin Steinberg has a bold idea to change this. In this powerful talk, she outlines the plan for The Bail Project -- an unprecedented national revolving bail fund to fight mass incarceration. Her ambitious plan is one of the first ideas of the Audacious Project, TED's new initiative to inspire global change.