Another Able Danger guys steps up to the plate.....

A third person has now come forward to verify claims made by a military intelligence unit that a year before the Sept. 11, 2001, attacks, it had information showing that lead hijacker Mohamed Atta (search) and other terrorists were identified as being in the United States.

J.D. Smith, a defense contractor who claims he worked on the technical side of the unit, code-named "Able Danger" (search), told reporters Friday that he helped gather open-source information (search), reported on government spending and helped generate charts associated with the unit's work. Able Danger was set up in the 1990s to track Al Qaeda activity worldwide.

"I am absolutely positive that he [Atta] was on our chart among other pictures and ties that we were doing mainly based upon [terror] cells in New York City," Smith said.

FOX is credited with breaking story first.