Able Danger: Shaffer/Weldon say Atta's Brooklyn cell was identified before 9/11

Observation

Able Danger officers testified they had identified Atta before 9/11 and were blocked from notifying the FBI. Commission staff found the claim unsupported.

Interpretation

If true, this is among the strongest H015/H008 items. If false, it is a post-hoc memory error. The lab does not pick a winner silently.

Source text

OBSERVATION: Multiple Able Danger participants later told Congress they had a chart with Atta's photograph before the attacks. Commission staff (Dr. Dietrich Snell and others) said they found no such identification and that a claimed meeting did not happen as described.

The programme existed. The Atta-identification claim is an open contradiction (CTR-010), not a resolved fact.

Hypothesis linkage

• H008supportsseeded

  If Able Danger identified Atta, agencies had still more pre-attack hold.

• H015supportsseeded

  Shaffer/Weldon Atta-identification testimony.