They increased economic actions against North Korea after it launched missiles and tested a nuclear device.

VOA: special.2009.08.08

North Korea on Monday exploded a nuclear device and tested a series of missiles in defiance of the international community.

VOA: standard.2009.05.30

After walking away from the six-party talks, North Korea tested its second nuclear device.

VOA: standard.2009.12.08

The primitive nuclear device tested by North Korea in 2006 is estimated to weigh more than 1, 500 kilograms (3, 307 pounds).

CNN: Commentary: North Korean launch not a cause for panic

Ever since 1974, when India tested a supposedly peaceful nuclear device, it has had the technical wherewithal to build the bomb.

ECONOMIST: A waste of nationalist pride

But advocates for preventing nuclear proliferation say it highlights the risk that terrorists could obtain enough fuel to build a nuclear device.

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