The tapes investigation

The crack LAT investigative reporting team has come across a letter that Congresswoman Jane Harman wrote to CIA officials in 2003 recommending they preserve the subject tapes. The significance of that is what?

On the editorial page, LAT editors recommend to Congressional committees that they not call as witnesses people who may testify in future criminal cases, so as not to gum up the works. Good advice. Congress ought to wait until the criminal investigation is finished. It shouldn't take long. We already know who ordered the destruction of the tapes.

Washington loves investigations and this is like most of the others: a waste of time and money. This one ought to be finished fast so as to consume as little as possible of those valuable resources. But it probably won't.