MIT develops new swimming robot to weed out drug smugglers

The robot was originally designed to detect fissures in nuclear reactor tanks, but the research has found a new purpose as an anti-smuggling device, using ultrasound to scan for false hulls and propeller shafts which smugglers use to conceal their contraband. The anti-smuggling robots are around the same size as a football, which would allow them to be camouflaged. This gives them an advantage over current technology, because they could be deployed quietly before the smugglers have a chance to offload their illicit cargo.