Kim Jong Un

North Korean leader Kim Jong Un goes nuclear -- and it might be for real this time.

The U.S. Navy is on high alert after Kim Jong Un ordered his military on standby to prepare for nuclear strikes on the U.S.

If there is a nuclear strike on the west coast of the United States, the radiation fallout alone would be catastrophic.

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hydrogen bomb

Americans awoke to the alarming news that North Korea detonated a Hydrogen Bomb Wednesday morning. North Korea claims the detonation was part of a test of its nuclear capabilities.

The Korean Central News Agency announced the "the H-bomb of justice," was tested in "the most perfect manner."

But officials who examined photos of the so-called test say the mushroom cloud is too teensey-weensy to be a real hydrogen bomb.

A real hydrogen cloud is on the left. N. Korea's minuscule cloud is on the right.

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