Twitter Mediators by Region (image) University of Georgia Caption A new study shows that individual users mediate news from the Department of State in the Middle East and Northern Africa. Communication in most areas, in contrast, was mediated by Twitter accounts of US government agencies. Credit University of Georgia Usage Restrictions None Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.