In article ,
TRUTH wrote:

The point is why would they put the alarm in test mode, on 9/11?

Because - and this is important - they have to TEST the damned things on
a regular basis. That's why they *have* test modes. And they test them
in the day (because that's when the people doing the testing are
working) and they test them in the morning (because that gives them the
whole rest of the day to find and fix problems).