The Department of Justice has seized about $15 billion worth of bitcoin held in cryptocurrency wallets owned by a man who oversaw a massive "pig butchering" fraud operation based in Cambodia, prosecutors said Tuesday.The seizure is the largest forfeiture action by the DOJ in history.An indictment charging the alleged pig butcher, Chen Zhi, was unsealed Tuesday in federal court in Brooklyn, New York.Zhi, who is also known as "Vincent," remains at large, according to the U.S. Attorney's Office for...