it was training in disguise is what they are pondering.    Considering the building involved and the past "training exercises" there is a good reason to speculate that this was a real exercise and the "training" was just for cover.    I hope they are right.  I had a gut feeling when i first saw this video that something real was going down.    I feel like training would not take place in LA.  Don't they have fake cities built for this type of stuff?  It could be the start of the military taking out the child trafficking/drug/arms dealears.