Tax fraud's such a drone on economy
Argentina's government is using a military-style spy in the sky to spot tax evaders.
The Buenos Aires province's tax agency says it has used drones to identify around 200 mansions and 100 swimming pools that have not been declared by their owners.
The unmanned aircraft flew over an exclusive neighbourhood near Buenos Aires and took pictures of luxury houses on sites registered as being empty.
Owners of the properties have been told to get their papers in order and get ready to pay hefty fines on a total tax evasion estimated at two million dollars (£1.2m).
Each drone costs about 10,000 dollars (£6,000) and the technology is also often used by Argentine security forces.