Is North Korea shopping for oil in Libya?

FP: The bizarre tale of the North Korean-flagged oil tanker that has been trying to escape the clutches of Libya's fragile central government has prompted days of conflicting news coverage, precipitated the fall of the country's prime minister, and underscored the continued threat posed by its patchwork of heavily armed militias. But the tangled saga also raises a more basic question: Why on earth would a North Korean-flagged ship risk being bombed "into scrap," as one official threatened, in order to load up on Libyan crude?