I confess that I didn't read the article. My bad, and thanks. I am going to hit up Google and see if I can learn about the mechanism and effectiveness.

It does look, from the snippet, like they aren't quite the same. I don't yet have an opinion on that, specifically the bit about data being erased after it has been settled. That's pretty different.

I shall see what I can find. It may change my opinion. Thanks again.