Read the excerpt from "The Role of Social Media in the Arab Uprisings" by Heather Brown, Emily Guskin, and Amy Mitchell. Now, research is emerging that reexamines in a more detailed way the role that social media played in the Arab uprisings. In July 2012 a report was published by the United States Institute of Peace based on an extensive content analysis of bit.ly links from the uprisings in Tunisia, Egypt, Libya, and Bahrain. Bit.ly links, or short URLs, are predominantly used in social media such as Twitter. The authors came to some conclusions that countered the initial assumption that social media was a causal mechanism in the uprisings. Instead, the study suggests that the importance of social media was in communicating to the rest of the world what was happening on the ground during the uprisings. How do the authors support the claim in this passage?