South Korea’s National Assembly is set to launch a parliamentary probe into ballot shortages reported during the June 3 local elections, after the rival parties agreed to pass an investigation plan at a plenary session set for Thursday. Rep. Cheon Jun-ho of the ruling Democratic Party of Korea and Rep. Kim Seung-su of the main opposition People Power Party, the senior deputy floor leaders in charge of parliamentary operations, reached the agreement Tuesday. The bipartisan move comes amid growing