That is exactly what the government has not done all these years. Why be tight-lipped if there is solid evidence and data, its not some issue of nuclear weapons/military-strategy.
I've suspected that they have evidence that China is using the platform for social manipulation, but we're using the same techniques on other countries and possibly domestically and the government doesn't want to make the general public aware of it. Or it could be that they don't have evidence of actual wrongdoing, but feel that the risk is too large to allow it to exist.
Whatever it is, this has gone off the rails and the public is going to need a real explanation if they decide to move forward with the ban.
Whatever it is, this has gone off the rails and the public is going to need a real explanation if they decide to move forward with the ban.