Disagree with video's claim that this is a demolition wall around the building. In Nancy Drew's video we saw it being a rectangular area in front of the White House, not encircling it. Other photos confirmed exactly this. But still weird, maybe time will tell.

Simplest explanation for the lights would be reflection of the lights of an emergency vehicle driving by. But the reflection doesn't look exactly like I would expect this to look. However, demolition of the inside is not a logical idea. Even if it was going to be destroyed, the building is really old, doesn't need to be weakened.

I don't think the White House will be destroyed by good guys or the bad guys, at worst it will be made into a monument about our infiltrated past government.