During the exercise, one chopper damage a historic building, according to the Detroit Free Press.

A U.S. Military helicopter caused damage to the historic Sperry's building in downtown Port Huron early Monday morning.

In listening to the video one can hear what seems to be 50 caliber rounds fired within the buildings. What is even more disconcerting is the fact that the troops were practicing extraction exercises on 20 story buildings.

As radio show host Pete Santilli points out:

Ladies & Gents: We are told that #JadeHelm is to prepare our troops for battle in Afghanistan and Iraq. HOW MANY 20 STORY BUILDINGS ARE IN AFGHANISTAN?

They must think we're idiots…