Kim Jong-un Assassination plot?

We would NEVER.

North Korea has accused the CIA of attempting to assassinate its leader, Kim Jong-un, using unspecified biochemical substances during a public ceremonial event in the capital, Pyongyang.

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Like other North Korean claims, the allegation that the CIA plotted to assassinate Kim is impossible to verify.

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[F]requent references to the presence of a hostile force bent on assassinating the North Korean leadership, and threatening the country’s very existence, is a time-honoured tactic designed to shore up public support at home.

  Guardian

The US has a long history of seeking to assassinate leaders who have challenged American interests. The plots, some of them farcical, have generally been unsuccessful or not implemented, though some targets have fallen in later US-inspired coups. [ed: list included in article]

  Guardian

The US has made more than 50 attempts to assassinate political party leaders according to William Blum in his 2003 book Killing Hope: U.S. Military and C.I.A. Interventions since World War II, which is "far and away the best book on the topic" according to Noam Chomsky, and "the single most useful summary of CIA history" in the opinion of former CIA officer John Stockwell. [ed: list included in article]

  Wikispooks

...but hey, do what you want...you will anyway.