- Bitcoin slides another 16%, falling below $50,000 CNBC
- Bitcoin drops after Musk tweet, Yellen warns it’s ‘extremely inefficient’ CNET
- Bitcoin drops further below key $50000 level after Yellen calls it ‘extremely inefficient’ MarketWatch
- Treasury Secretary Yellen Is Wary of Bitcoin ThinkAdvisor
- US treasury secy Yellen says Bitcoin extremely inefficient for transaction Mint
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