U.S. and U.K. in Tussle Over Trader.

The article discusses disagreement between the U.S. Justice Department and Great Britain's Serious Fraud Office (SFO) over Tom Hayes, a former trader for banking company UBS AG believed complicit in an interest-rate-fixing scandal. The SFO has denied Justice's request to interview Hayes, and could enter into a plea deal that would block Hayes' extradition to the U.S.