Sept. 14 (UPI) -- The United States' second-most senior diplomat expressed regret Sunday over the recent immigration raid at a Hyundai car battery plant in Georgia. U.S. Deputy Secretary of State Christopher Landau met Sunday with First Vice Minister of Foreign Affairs Park Yoon-joo to discuss cooperation in the continued efforts to resolve the diplomatic spat stemming from the raid, South Korea's Foreign Ministry said in a statement . During the meeting, Park highlighted the "uncomfortable