
"The Man Who Knew" - Preview
Preview: Season 2002 Episode 19 | 30s
Airs Tuesday, August 30, 2011 at 9:00 p.m. ET/PT. Check your local listings.
When the Twin Towers fell on September 11, 2001, among the thousands killed was the one man who may have known more about Osama bin Laden and Al Qaeda than any other person in America: John O'Neill.
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Funding for FRONTLINE is provided through the support of PBS viewers and by the Corporation for Public Broadcasting. Major funding for FRONTLINE is provided by the Ford Foundation. Additional funding...

"The Man Who Knew" - Preview
Preview: Season 2002 Episode 19 | 30s
When the Twin Towers fell on September 11, 2001, among the thousands killed was the one man who may have known more about Osama bin Laden and Al Qaeda than any other person in America: John O'Neill.
Problems with Closed Captions? Closed Captioning Feedback
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Learn Moreabout PBS online sponsorshipA 1997 Interview With John O'Neill
Footage of "The Man Who Knew" talking about his job, the work of FBI agents and more. (3m 47s)
Providing Support for PBS.org
Learn Moreabout PBS online sponsorshipFunding for FRONTLINE is provided through the support of PBS viewers and by the Corporation for Public Broadcasting. Major funding for FRONTLINE is provided by the Ford Foundation. Additional funding...