"There are concerns that North Korea could respond with more defiance: further tests of missile technology that would get the regime close to its goal of mounting a nuclear warhead on an intercontinental ballistic missile (ICBM) — or another nuclear test," echoed Jean H. Lee, global fellow at the Woodrow Wilson International Center for Scholars and former Pyongyang bureau chief at the Associated Press.
Read MoreBBC World Business Report: North Korea Economy Surges Despite Sanctions
North Korea's economy accelerated at its fastest pace in 17 years last year. Jean Lee of the Woodrow Wilson Center assesses the figures.
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