Some US politicians fear that RISC-V, an open-source alternative to ARM & x86-64 architectures, poses a national security threat and will topple the USA's leadership in chip design. "Our export-control laws are not equipped to deal with the challenge of open-source software."

https://www.reuters.com/technology/us-china-tech-war-risc-v-chip-technology-emerges-new-battleground-2023-10-06/

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