I don't remember a group or report labeled "Able Danger", but it's interesting to see the 9/11 Commission admit they knew about this at the time of their report, but didn't include it in their report.
Just like they didn't include other important pieces of information in their report. Like Salmon Pak. That only made one of the Staff Reports (December '03) but didn't make the final report. Shameful and puts to bed the left's mantra that the 9/11 Commission report is THE final report on intelligence failures.
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The Commission staff - knowingly - omitted the information according to Congressman Weldon. He recently spoke with Navy Sec'y Lehman who is more than torqued that this information was not passed onto the commission. According to Weldon's account of his conversation with Lehman there was "a lot of information" that the staff did not pass on.