"San Francisco Investigates 'X' Sign on Twitter Building Amid Permit Violation Concerns"

A giant flashing "X" sign was installed on top of the former Twitter headquarters in San Francisco without city permission, leading to an investigation. The city requires permits for signage to ensure safety and consistency with the building's historic nature. San Francisco police stopped workers from removing the platform's bird logo due to safety concerns. The sign is part of Elon Musk's rebranding efforts for Twitter, which he bought last year and changed the logo to an "X." Twitter CEO Linda Yaccarino described "X" as the future state of unlimited interactivity powered by AI.