The term "closed" is fairly common. It simply means the case is "closed" without prosecution. It does not mean "secret" or "private." It also does not mean "not guilty," as there was never a final adjudication.

A well reasoned argument is like a diamond: impervious to corruption and crystal clear - and infinitely rarer.

Here, as elsewhere, people are outraged at what feels like a rigged game -- an economy that won't respond, a democracy that won't listen, and a financial sector that holds all the cards. - Robert Reich