Kim Jong-un will have seen the footage. A supreme leader of nearly 37 years, killed alongside members of his own family. Citizens celebrating in the streets. Rivals already angling for a role in the political transition. If the US-Israeli strike that killed Iran’s supreme leader Ali Khamenei on Saturday was intended to send a message to the world, analysts say North Korea almost certainly received it. Though the lesson likely learned – do not negotiate with the US and never be in Iran’s position...