By Ben Isaacs (August 4, 2017, 12:38 PM EDT) -- Three U.K.-based former currency traders, dubbed the "Cartel", have agreed a deal with the U.S. authorities to surrender and face charges following a criminal investigation into rigging of the $5.3tn-a-day foreign exchange market. The deal with the U.S. Department of Justice, which has to be signed off by a judge, is intended to bypass a lengthy extradition battle for the trio, who all deny allegations they manipulated the price of U.S. dollars and euros. In exchange for surrendering and agreeing conditions of bail with the U.S. Department of Justice, the defendants will be able to return to the U.K. pending trial in the U.S....