Here is an excellent piece on Judith Miller’s decision to go to jail despite being released from confidentiality by her source

Something doesn’t add up about why Judith Miller went to jail. The New York Times reporter didn’t write a story about the Valerie Plame case and had a waiver from her source in order to talk about it to the grand jury. But she insisted on going to jail anyway. Speculation is mounting that Miller is protecting herself─that Miller was herself a source of information about Plame that made it to several Bush administration officials and was then recycled to columnist Robert Novak.
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This would help explain why Miller didn’t write a story about the case. It would be difficult for Miller to write a story when she was so deeply involved in how it developed. Disclosure of her role then or now would be extremely embarrassing.

Is it possible she has something more to hide? It is rapidly becoming clear there was no ‘outing’ of Plame since her job at the CIA was already ‘out’ in DC’s elite social circles.

Is it more than this? Did Miller have other ties to Plama and Wilson and their fraudulant intel on Saddam’s nuclear weapon ambitions???

The assumption all along has been that Miller is going to jail to protect a source. This doesn’t make sense because her “source” provided a waiver, releasing Miller from any promise of confidentiality. These waivers have enabled several reporters to testify in the case. Why should Miller be any different, unless her relationship with her “source” is different? In other words, what if the “source” was an official who may have given some information to Miller but received some important information in return and then passed it on to others already questioned by Fitzgerald? This would explain why Miller, who didn’t write a story, got dragged into the case.

The more likely explanation is that Miller is protecting private discussions with administration officials, and that during those discussions she provided or confirmed information about Plame’s identity. This would make sense. Both Miller and Plame covered the subject of weapons of mass destruction and it was likely that they knew one another, or at least were aware of each other’s work in this field.

There is opportunity here it seems.