A South Korean newspaper reports that dozens have been executed in North Korea; in at least one case, in front of 10,000. If true, it could signal a new wave of repression for the brutal regime.
Under the National Security Act, South Koreans can be sentenced for everything from re-tweeting North Korea's official Twitter account to reading northern propaganda.
North Korea went on high alert and said the US should forgo planned military exercises with Japan and South Korea. But it could have a hidden agenda.
Analysts say that North Korea may be holding out for a high-profile visitor from the US before allowing Kenneth Bae’s release.
The Kaesong Industrial Complex, shuttered earlier this year, is one of the only areas of cooperation between rivals North and South Korea.