Scientific American — A raft of start-ups has been hawking what they see as a revolutionary solution: repurposing blockchains, best known as the digital transaction ledgers for cryptocurrencies like Bitcoin, to record votes. Backers say these internet-based systems would increase voter access to elections while improving tamper-resistance and public auditability. But experts in both cybersecurity and voting see blockchains as needlessly complicated, and no more secure than other online ballots.  Learn more>>