Leading cryptocurrencies plummeted Tuesday as Iran’s missile barrage toward Israel sparked fears of a full-blown regional war in the Middle East. What Happened: Bitcoin plunged to a nearly two-week low of $60,370 as Iran launched a missile attack against Israel. The leading cryptocurrency recovered to $61,000 when the attack ended. Ethereum witnessed a steeper drop, crashing to levels not seen since Aug. 19. Total cryptocurrency liquidations exceeded $521 million in the last 24 hours, the highest since the Black Monday meltdown in August. Nearly $450 million in bullish bets were erased. Bitcoi…