(CNN) – There is new information today about a bombing that was the deadliest attack in CIA history.

In a new video, the suicide bomber who killed CIA employees and contractors in Afghanistan says he knew he was meeting the CIA. Our Barbara Starr has the report.

(CNN) - The terrorist threat posed by radicalized Muslim- Americans has been exaggerated, according to a study released Wednesday by researchers at Duke University and the University of North Carolina at Chapel Hill.

A small number of Muslim-Americans have undergone radicalization since the September 11, 2001, terrorist attacks on New York and Washington, the study found. It compiled a list of 139 individuals it categorized as "Muslim-American terrorism offenders" who had become radicalized in the U.S. in that time - a rate of 17 per year.

That level is "small compared to other violent crime in America, but not insignificant," according to the study, titled "Anti-Terror Lessons of Muslim-Americans."

To be included on the list, an offender had to have been wanted, arrested, convicted or killed in connection with terrorism-related activities since 9/11 - and have lived in the United States, regardless of immigration status, for more than a year prior to arrest.

Of the 139 offenders, fewer than a third successfully executed a violent plan, according to a Duke University statement on the study, and most of those were overseas. Read the full story »

Editor's Note: Below is a list of six well-known offenders excerpted from the Duke study.

Name: John Walker Lindh
Year of arrest or attack: 2001
Official charges: Providing aid to the Taliban, carrying explosives
Status of case: Pled guilty
Nature of offense: Joined and fought with the Taliban.
Location of criminal activity: Abroad
Target of plot/location of violence: Abroad
Engaged in violent act/joined fighting force: Yes
Age at time of arrest/attack: 20
Age at arrival in US: US-born
Citizenship status: Citizen
Convert to Islam: Yes
Ethnicity: Caucasian

FULL POST