Low-flying piloted aircraft

I see these every night without fail. They might pass for aircraft, but they fly low to the ground and are silent. They appear to carry people, but there doesn’t appear to be a cabin. I am concerned because I have seen men in military uniforms piloting them (militia?). It’s my hope the U.S. government will at least investigate. Given the military uniforms I fear they might have a political agenda and may be planning acts of domestic terrorism. My photos aren’t great, but I am willing to hand over the images I have to the authorities. If there’s a plausible explanation for what I’m seeing I don’t know what it is.