SEOUL: Contenders for South Korea's presidency kicked off their campaigns on Monday (May 12), vowing to unify a deeply polarised society and spur economic growth while navigating trade negotiations with the United States. Asia's fourth-largest economy will hold a snap presidential election on Jun 3 to choose Yoon Suk Yeol's successor after the conservative leader was ousted over his shock martial law order that plunged the country into a political crisis. Surrounded by a huge crowd of