Washington and Tokyo's rare coordinated intervention aims to avoid spillover to global financial system.

Washington and Tokyo jointly intervened to shore up the Japanese yen for the first time in nearly 30 years after the currency sank to its weakest level in decades, the Financial…

The U.S. and Japan are said to have jointly intervened to prop up the Japanese yen for the first time in nearly 30 years after the currency plunged to its...