https://www.reuters.com/article/us-crypto-currency/musk-tweets-doge-leaps-and-bitcoin-retreats-idUSKBN2CU2JC >Bitcoin was pinned near its lowest in more than two months on Friday and headed for its worst week since February, while dogecoin leapt by a fifth as tweets from Tesla boss Elon Musk sent the two cryptocurrencies on a wild ride.