US authorities have recently begun releasing some of the previously seized Chinese-made cryptocurrency miners after industry sources revealed that up to 10,000 miners had been stranded at various ports of entry in the US. Taras Kulyk, CEO of Synteq Digital, said that thousands of devices have been released so far, but he said that some US Customs and Border Protection (CBP) officials have made things difficult for the crypto industry, leading to serious difficulties for miners. Although some of the mining rigs have been released, Luxor Technology chief operating officer Ethan Vera said most of the equipment is still in custody. He also revealed that the US has expressed concerns about the radio frequency emissions of mining rigs, but the industry generally believes that these allegations are baseless.