From the article:
Jim Walsh, a national security analyst at the Massachusetts Institute of Technology, said the intent of the test appeared to be aimed at drawing attention back to North Korean demands in the six-party talks. But Walsh said the tests "do not represent an immediate military threat to the United States."
'Difficult technology'
"It's very difficult technology. They very clearly have not mastered it," he said. "Most estimates are they will not master it for another 10 years."
Despite this guy being from MIT, I think he must have for brains, A failed test does not equate to ten more years of necessary development. I think this administration, and the BS they sling around, has me very sensitive to any statement like this.