The stories are among a series of investigative reports that have been conducted by Newstapa, also known as Korea Center for Investigative Journalism, since March 1 this year to reveal suspicions about the spy agency's involvement in the presidential election of 2012. With the use of a social web analysis tool, Newstapa disclosed some 600 Twitter accounts suspected to be related to the spy agency. After studying Social Network Analysis of 280,000 Twitter postings, it revealed that at least 10 groups systematically operated on Twitter. The in-depth reporting exploited social science research methods to disclose the involvement of South Korea's highest-level intelligence agency, which is banned from political meddling, in the presidential election of 2012. The findings of the reports have been confirmed to be true by prosecutors' investigations.