The answer is: 9.11.

The 9.11 Commission Report, which was released in September, was a major step forward in the investigation into the 9/11 attacks. It was a major step forward in the investigation into the 9/11 attacks. It was a major step forward in the investigation into the 9/11 attacks.

The 9.11 Commission Report, which was released in September, was a major step forward in the investigation into the 9/11 attacks. It was a major step forward in the investigation into the 9/11 attacks.

The 9.11 Commission Report, which was released in September, was a major step forward in the investigation into the 9/11 attacks. It was a major step forward in the investigation into the 9/11 attacks.

The 9.11 Commission Report, which was released in September, was a major step forward in the investigation into the 9/11 attacks. It was a major step forward in the investigation into the 9/11 attacks.

The 9.11 Commission Report, which was released in September, was a major step forward in the investigation into the 9/11 attacks. It was a major step forward in the investigation into the 9/11 attacks.

The 9.11 Commission Report, which was released in September, was a major step forward in the investigation into the 9/11 attacks. It was a major step forward in the investigation into the 9/11
