The U.S. Justice Department (DoJ) on Tuesdayannouncedthe arrest of a married couple in connection with conspiring to launder cryptocurrency worth $4.5 billion that was siphoned during thehackof the virtual currency exchange Bitfinex in 2016. Ilya Lichtenstein, 34, and his wife, Heather Morgan, 31, both of New York, are alleged to have “stolen funds through a labyrinth of cryptocurrency