Just saw a jet fighter flew over my head this morning. It flew at very low altitude, almost at treetop level. I didn't fly my drone that time, but it had me thinking. The jet flew so fast, that I only hear it when it was almost on top of me. If I fly my drone that time and the drone somehow in the collision path of the jet, it's likely that I may not have enough time to react. So I do hope that the jet got ADB-S so that the Airsense can detect it and give me early warning.