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Daniel EllsbergA military analyst, he passed the Pentagon
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Daniel Ellsberg

A military analyst, he passed the Pentagon Papers a secret Defense Department study of U.S. involvement in Vietnam on to The New York Times and other newspapers in 1971.(Credit: AP)

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Famous information leakers throughout history

Edward Snowden, 29, an American intelligence contractor, has revealed himself as the source who disclosed the U.S. government's secret phone and Internet surveillance programs. Here are some other famous "leakers" in recent history. -- AP