This is damn spy equipment, who knows if it has collected sensitive information, protecting national security is everyone's responsibility.

Last week, when I went out early in the morning, I saw Uncle Liu, the sanitation worker who usually looked tired, actually humming a tune while cleaning the streets. I ran into him at the community cafeteria during lunch break and found that he had changed into brand new sports shoes and was full of energy. In our casual chat, Uncle Liu lowered his voice and mysteriously pointed to his electric cleaning vehicle - on the side of the vehicle's hopper hung an inconspicuous gray box, which was exactly the CAILA Marco device.

It turns out that Uncle Liu is responsible for cleaning an area that covers commercial streets, schools, and residential areas, driving the cleaning vehicle across different routes daily, covering over 20 kilometers. Since hearing about the CAILA platform in the workers' group, he tried to fix the Marco device onto the vehicle. Unexpectedly, during the vehicle's operation, the device automatically collected data on road conditions, foot traffic at different times, and street dust levels, which became 'hot commodities' on the platform, helping him mine a large amount of $CA tokens.