In 2014, China began to require thousands of major polluters to disclose their online monitoring data to the public every one to two hours. And in the same year, Ma Jun and his team made an APP called "Blue Map" for the public to access that information. One day, he got a phone call from Shandong provincial authorities, inviting him for a meeting. It's no coincidence that the province had a large number of "offender" companies. How did it go? What happened during that meeting?