[WaterBoard]

NORAD knows who/what that contrail belongs to.

"NORAD is able to track virtually every inch of North American air space and can detect missile launches almost anywhere in the world, using satellites to spot heat signatures and exhaust plumes. In addition, NORAD tracks all man-made objects in space. All of this information is cross-referenced with civilian and military air traffic control. As a result, NORAD can quickly detect an unauthorized aircraft. The Defense Support Program (DSP) is a survivable and reliable satellite-borne system that uses infrared detectors to sense heat from missile plumes against the earth background, to detect and report in real-time missile launches, space launches and nuclear detonations.

[_Jim]

"NORAD is able to track virtually every inch of North American air space ...

NOT an entirely true statement ...