Senior Science Fellow Philip Coyle was quoted in ABC News (Australia).
“It shows that they’re making progress very fast on their nuclear weapons,” said Dr Philip Coyle from the Centre for Arms Control and Non-Proliferation in Washington.
“As we see similarly with their rocket tests — they’ve done about 84 tests since Kim Jong-un became President, a much higher rate of testing than his father and grandfather — and the same goes for the nuclear weapons tests.
“The most recent just being a year after their fifth test.”
