The article discusses a court case in Illinois where a journalist, Matt Chapman, sued the City of Chicago for access to the database schema of the city's parking ticket system, CANVAS, under the Freedom of Information Act (FOIA). The city claimed that releasing the schema would jeopardize the security of the system, but the court ultimately ruled in favor of Chapman. The case highlights the tension between government transparency and security concerns. The author, an expert witness in the case, argues that database schemas are not sensitive information and do not pose a security risk.