Tensions reach boiling point on Korean peninsula

North Korea has threatened to wage a “full-scale war” against South Korea after the country accused its northern neighbor of sinking a warship on March 26. The South Korean government says it has forensic evidence that North Korea sank one of its warships, killing 46 sailors, but North Korea denies the charges and says the formal accusations could escalate tensions. The country has also threatened to engage in military action if South Korea implements punishments.

We talk with Charles Armstrong, the director of the Center for Korean Research at Columbia University, about the implications of this standoff.