Shelley, still the Pentagon inspector general's senior counsel, declined to answer questions but said he was "certain my name will be cleared" by the new investigation.
Daniel Cooperman, Apple's general counsel, declined to answer a question about a reported investigation by securities regulators into how Apple has handled the disclosure of information about Mr. Jobs's condition.
When contacted by the Center for Public Integrity, Eric Lycan, the group's legal counsel, declined to answer questions about the nonprofit's contributors citing a desire to "protect the privacy of its donors".
In an interview, Mr. Specter said that he still expected Ms. Miers, the White House counsel, to respond with fuller answers by Wednesday, the deadline in the letter, and that his chief counsel was in meetings with White House officials to negotiate how much information to provide.
The aim of this counselling offer is to answer back pain related questions that usually cannot be handled during a normal consultation.
"On the advice and direction of my counsel, I respectfully decline to answer.
Mr. Fitzgerald, the special counsel, declined on Thursday to answer questions about the leak investigation in a public appearance in Chicago.
Jerome G. Oslick, the $1-million-a-year general counsel for Farmer Mac, agreed to answer only questions submitted in writing.
That Comey is "sure" the special counsel, Robert Mueller, will try to answer the question bespeaks a range of potential criminal outcomes.
Representative Gary Ackerman, Democrat of New York, for instance, asked: "Do you sleep well at night, Mr. Ebbers?" Mr. Ebbers responded, as he did to some 30 other questions: "On the instructions of counsel, I respectfully decline to answer on the basis of my Fifth Amendment constitutional rights".
