Concerns are growing that the absence of officially published polling data could allow unverified claims and fake news to spread more rapidly through social media and online communities.

South Korea's June 3 election race is heating up, with opinion polls hinting at closer-than-expected races in many key battlegrounds eyed by the ruling Democrat

Concerns are growing that the absence of officially published polling data could allow unverified claims and fake news to spread more rapidly through social media and online…