Reuters – Japanese online gaming firm Nexon Co Ltd will begin to aggressively explore U.S. acquisitions to further a long-standing plan to expand in Western markets, its CEO-elect Owen Mahoney said. “We continue to believe that North America is a big, big opportunity for us,” Mahoney said in an interview with Reuters late on Wednesday ahead of the company’s announcement that he would succeed current Chief Executive Officer Seungwoo Choi in March. Mahoney, currently Nexon’s chief financial officer, led mergers and acquisitions and business development at Electronic Arts Inc for about a decade before joining Nexon, which is known for…