I think it has increased because of the world's reaction to what's taking place in Hong Kong, and it's increased because of increasing concern over the crisis in the Taiwan Strait and over economic problems.
There are many intelligent members of the Communist Party leadership—and I know some of them—who are very unhappy with what the great leader is doing, and when things get worse, there's only one place people will look. They'll look at him, and these people aren't free even to talk to each other now. The surveillance of the party elite is so great, but there is great mistrust. There's great doubt about the wisdom of Xi Jinping's increasingly assertive policy.
We should not delude ourselves. We've seen enough in the history of Communist Party leadership rivalries to know this exists and I hear from people, confidentially of course, many of the misgivings that they have. I urge everybody to try to see this movie that was semi-humorous but quite to the point, The Death of Stalin.