This presentation draws on a series of recent studies conducted by Assistant Professor Matthew Blomberg and Associate Professor John W. Cheng, including a new investigation into the illusory truth effect and the influence of need for cognition on vaccine disinformation susceptibility in Japan. The session will examine cross-national trends, particularly in Japan and the United States, and discuss potential tools, procedures, and policy responses for mitigating the spread and impact of false and deceptive information.