The only purpose of NORAD's Integrated Tactical Warning and Attack Assessment
(ITWAA) function was to confirm that an attack was in fact underway.
One of them was actually an attack assessment
and the system behaved exactly the way we needed it to behave.
It said that could include "attacks on the US, allied, or partner civilian population or infrastructure, and attacks on US or allied nuclear forces, their command and control, or warning and attack assessment
The initial attack assessment
is that both attacks were successful."