CDC data are disappearing

If people really cared they would have stored copies of this data, not just relied on a single source.

That only makes sense if everyone downloads every data set in case they need it one day. I unhappily agree that's the case with private companies' data, because any company's not guaranteed to be around tomorrow. But the government should be a steward of the data it collects.

I also wonder how many of these data sets were required by law.

I care, but I don’t download everything I care about, that would be a lot.

Would be quite expensive when talking about potential petabytes of data.