Worldwide unrest is great for those in the riot-gear business. Shields and batons have historically cornered the market as the cutting edge in crowd control, but in recent years it’s evolved to include robots, armored trucks and drones.

Milipol Paris is the homeland security expo of all expos. This is the kind of giant showroom where you will find law enforcement and private security agents checking out the newest innovations in robot dogs, armored vehicles and unmanned turrets as if they’re going from painting to painting at the Louvre.