"Any Britons who have vacation (or business) plans in China in the
immediate future might have a new problem on their hands. "
Slider, to you most things are considered trivially. I don't think
you invest in much at all and I say that objectively, not to pick a
fight.
I take the China world threat very seriously. Much more than Russia,
which as you know, provided the weaponry to shoot down a commercial
plane full of holidaymakers and kids. That was an accident of war.
If I were you, I wouldn't be visiting Tibet any time soon :)