Hong Kong protests against China's new bill in a high-tech way

One of the world's main air-transport hubs, Hong Kong International Airport has since last Friday been swarmed by thousands of anti-government protesters who gathered there for a sit-in to draw international travellers' attention to their home city's ongoing political crisis and the alleged police brutality employed against demonstrators.
The protests led the airport authority to cancel all flights on Monday and suspend all check-in processes on Tuesday, leaving hundreds of travellers stranded and frustrated.