Buoyed by signs of an economic recovery, Finance and Economy Minister Choi Sang-mok said, Thursday, he sees 'rare signals of green light for the national economy.' He was referring to Korea's economy growing 1.3 percent during the first three months of this year, the highest in 27 months. However, Choi might end up regretting his overly optimistic outlook in light of the formidable economic challenges facing the nation.