After this preliminary conversation, Mr. Johnson said, Samuel Waksal had offered to cooperate fully with Congress.
The source has not revealed their identity but has offered to cooperate with law enforcement.
They apologized and offered to cooperate fully with the Afghan government in its investigation into what led to the burning of the Korans.
He immediately offered to cooperate fully with the Blair government to make London a success and work for a Labour victory at the general election.
Last summer, Mr. Putin offered to cooperate with the United States and European powers on theater missile defenses that could be brought to bear against any threatening nation.
Mr. Faneuil, who executed Ms. Stewart's share sale, has probably offered to cooperate in exchange for immunity from prosecution, Mr. Coffee said.
It is unclear whether Rengan Rajaratnam has offered to cooperate with the government as part of any plea agreement or whether the talks will even result in him pleading guilty to insider trading charges.
Syria has offered to cooperate with a UN investigation into evidence that it tried to build a reactor that could have been used to make a nuclear weapon, it has been reported.
"As far as I know, Yukos has offered to cooperate with the tax ministry on settling the claims that have been made," the finance minister, Aleksei L. Kudrin, told news agencies on Monday.
The former Taliban foreign minister, Wakil Ahmed Muttawakil, has offered to cooperate with the government of President Hamid Karzai in a deal struck while in American custody, a senior aide to the president said.
