Church of Scientology the "United Churches of Florida" the citizens and City Council of Clearwater did not realize that the building's owners were actually the Church of Scientology until after the building's purchase. Clearwater citizens' groups, headed by Mayor Gabriel Cazares, rallied strongly against Scientology establishing a base in the city (repeatedly referring to the organization as a cult), but Flag Base was established nonetheless. In the years since its foundation, the Flag Land Base has expanded as the Church of Scientology has gradually purchased large amounts of additional property in the downtown and waterfront Clearwater area. Scientology's largest project in Clearwater has
Flag Building the building would be opened to the public on October 6, 2013, with a dedication ceremony that the church estimated would attract approximately 10,000 Scientologists. However, a month later it emerged that the Church had canceled the ceremony and postponed the opening of the building. The building finally opened on November 17, 2013. The Church states the Super Power Building provides a dedicated center for delivering the Super Power Rundown, a high-level Scientology training course that has not yet been released. The Super Power Rundown was described by Scientology's founder, L. Ron Hubbard, as Hubbard wrote that "Super Power is