damage in their test of wills with the city authorities, and by extension the communist party rulers in beijing. let me also ask you kind of what has what we know, at least, since there s a lot of unknowns, what we know has transpired in the last few minutes since we ve been on air is we saw multiple large police buses pulling up to the airport. we saw police in riot gear outside. we saw some police walking in for it looked like a brief moment into the airport and now out. now paula is telling us that the police buses of at least left from that location. i don t know if entirely left the airport or what. that just seems really surprising that they would show this big present this big show of force and then turn around. what do you think? reporter: kate, i ve seen on multiple occasions now riot police move in, do a show of force, maybe fire tear gas and