Artificial Intelligence, Machine Learning, Data Science, Military, War.
https://www.semanticscholar.org/paper/Standoff-Acoustic-Laser-Technique-to-Locate-Buried-Haupt-Rolt/eb27f7b99bd0a719220c81f9a83e8b0fca5e01c1/figure/6, https://www.creare.com/hunting-landmines-with-sound/, https://www.dvidshub.net/image/4968960/foul-weather-tool Laser vibrometers in the military are