A swarm of small robots developed by a team of European scientists can carefully extract and transport vehicles up to two tons in weight. These tiny machines and their larger deployment unit are collectively called Avert, short for "Autonomous Multi-Robot System for Vehicle Extraction and Transportation." As the name implies, the system needs very little human input: it can scan the area and look for potential obstacles to plan its safest route. The deployment unit will then release the small robots, which attach themselves to the vehicle that needs extraction. As much as we'd love for Avert to rescue us from bad parking situations, though, it was specifically developed for use by law enforcement.