Tensions remain high on the Korean peninsula, with the US now beefing up its military strength in response to Pyongyang's threats. But former US negotiator Joel Wit sees the North's behavior as rational and predictable.
Pyongyang is warning that the two Koreas are inching closer to nuclear war. It's a threat that many South Koreans have been hearing over the years. But this time, residents of the south Korean island of Baengnyeong are taking these threats more seriously.
Many ordinary Americans are already making the trip to North Korea. Americans have been able to travel there since 2002. Anchor Marco Werman talks with Korya tour director Nick Bonner who has been taking tourists to North Korea for more than a decade.
For years, Stephen Colbert's conservative parody showed how satire and ridicule can be powerful forms of expression. Now with Sony canceling "The Interview" in the face of apparent North Korean threats, his show's ending seems like an even bigger blow for free speech.
North Korea has ratcheted up its anti-American rhetoric, saying it has missiles on standby to attack US bases and even the American mainland. Anchor Marco Werman speaks with The World's Beijing correspondent, Mary Kay Magistad.