Venezuela is one of the most dangerous places to mine BTC. But mining in crypto currency is legal there; yet some people are doing it illegally and being arrested. Also many people are being arrested on false charge. Mining in Venezuela is cheap because the electricity is cheap there. Though being in a crisis situation; digital currency like BTC is gaining importance.
it is only cheap there because the mining itself is direct abuse of the socialist workers that upkeep the infrastructure there. if they would start charging money for their work the venezuelans would reach levels of poverty never imagined before.
bitcoin and mining, will likely ultimately end every single trace left of socialism in venezuela