The rapid advancement of Artificial Intelligence (AI) has prompted significant regulatory efforts from both the European Union (EU) and the United States (US). As AI becomes increasingly embedded in various sectors, concerns over its ethical use, security, and societal impact have grown. This article delves into the regulatory strategies of the EU and the US, focusing on the scope and choice of sectors deemed to be high-risk. Through a comparative analysis, it sheds light on how these two influential regions are navigating the challenges of creating comprehensive AI governance frameworks and identifies blind spots in the EU approach.