Australian coder and YouTuber, Code Bullet, built a Tetris game from scratch, and then a superhuman AI to play it ad infinitum.

The debate over ammunition coding isn’t fundamentally about cost or the difficulty in managing a law-enforcement bullet database.

Ballistics forensics -- the comparison of microscopic markings on bullets or bullet fragments -- has long been a cornerstone of police work. It has helped establish, for example, links among the ...