Bitcoin retreated after crossing into five figures early on Monday, establishing the psychological level of $10,000 as the resistance to beat for the bulls. After briefly touching $10,008 at 01:30 UTC, according to CoinDesk's Bitcoin Price Index, the cryptocurrency had fallen back to $9,620 by 03:00. Bitcoin has now failed twice in the last 24 hours to find takers above $10,000. Another attempt during Sunday's early U.S. trading hours also saw prices print a high just above $10,000 only to plunge quickly to $9,850. The failures have poured cold water over the optimism generated by the move higher seen over the ... (full story)