The regulation of public opinion was tightened after the National Propaganda and Ideology Work Conference in August 2013. At the conference, General Secretary Xi Jinping underscored the importance of "ideological work" in strengthening and uniting China; more specifically, he strongly emphasized the need to suppress controversies, "mistaken viewpoints", and rumors on every public platform. Shortly after this conference, a nationwide Internet Cleaning-up Campaign (净网行动) was implemented, during which there was a widespread deletion of blogs containing views deviating from those of the Party. That same month in 2013, the government also made a concerted attack against "Big V's" (verified social media celebrities with large public influence) who had a history of online activism and rumor-mongering.