The "Stopping Harmful Incidents to Enforce Lawful Drone Use Act," or the "SHIELD U Act," is designed to enhance safety and security at commercial service airports by empowering government agencies to address unauthorized drone activities. This legislation aims to mitigate potential threats posed by unmanned aircraft systems (UAS) that could jeopardize public safety or result in significant economic harm. Key provisions of the law authorize federal and local agencies, including the Department of Homeland Security and local law enforcement, to detect, identify, and respond to drone threats.