NYT's Adam Liptak:
Posted by Laura at July 7, 2005 07:02 AM....Mr. Cooper's decision to drop his refusal to testify followed discussions on Wednesday morning among lawyers representing Mr. Cooper and Karl Rove, the senior White House political adviser, according to a person who has been officially briefed on the case. Mr. Fitzgerald was also involved in the discussions, the person said.
In his statement in court, Mr. Cooper did not name Mr. Rove as the source about whom he would now testify, but the person who was briefed on the case said that he was referring to Mr. Rove and that Mr. Cooper's decision came after behind-the-scenes maneuvering by his lawyers and others in the case.
Those discussions centered on whether a legal release signed by Mr. Rove last year was meant to apply specifically to Mr. Cooper, who by its terms would be released from any pledge of confidentiality he had made to Mr. Rove, the person said. Mr. Cooper said in court that he had agreed to testify only after he had received an explicit waiver from his source.
Richard A. Sauber, a lawyer for Mr. Cooper, said he would not discuss whether Mr. Cooper was referring to Mr. Rove, nor would he comment on discussions leading up to Mr. Cooper's decision...
Mr. Sauber said Mr. Cooper's agreement to testify was limited to a single conversation with a single source.
"It's not open season on Matt's sources," Mr. Sauber said, noting that Mr. Cooper had testified in the investigation on similar terms once before, after receiving the permission from I. Lewis Libby, chief of staff for Vice President Dick Cheney...
In her statement in court, Ms. Miller said she had received no similar permission from her sources.