Japan's government received this report years ago and thus cannot claim ignorance of it.

ECONOMIST: More of the facts will out

Few can claim ignorance of the IRS push for full transparency of foreign bank accounts and income.

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It happened before in a case that is too close for anyone involved here to claim ignorance of: Refco.

FORBES: MF Global: It's Not Over Until It's Over

The mall landlords that currently rent space to pirates could drive them out, but they tend to claim ignorance of what is going on.

ECONOMIST: Software piracy

"The world cannot claim ignorance, " said U.N. envoy Kofi Annan.

CNN: NATO heads for Bosnia's front lines

During our testimony we were amazed that the Senate Banking Committee was willing to allow industry insiders to claim ignorance regarding simple matters such as the cost of executing a securities trade.

FORBES: The Great Mutual Fund Clean Up That Almost Happened (April 4, 2004 )

" Even so, Dr. Kass says, "in the face of our ignorance about its status, the embryo does have a certain claim on us.

WSJ: Leon Kass: The Meaning of the Gosnell Trial