The price of Bitcoin continued plunging Tuesday, falling below the $100,000 mark for the first time in six months. Other top coins are falling even harder, driving$1.3 billion in liquidations over the past day. Bitcoin touched as low as $99,954 on crypto exchange Coinbase and$99,990 per price tracker CoinMarketCap before rebounding above $101,000, off more than 5% over the past 24 hours. The leading  cryptocurrency by market capitalization has fallen about 12% over the past week and more than 20% since ...