The man who tweeted mentioned there was no power, he was using a generator a lot. I’m wondering if it’s a normal occurrence in Abbotabad to be without power or if this started happening a few months ago. The point was to condition the people so they would think that it’s just another power outage.
If power outages were common and people used generators a lot, the sound of the generators would help mask out the silent (quiet-stealth) helicopters.