Killing of Kirk exposes US divide

The phrase "the shot heard around the world" refers to the one in Lexington, Massachusetts, in the US in 1775, which sparked the Revolutionary War against Britain and led to American independence a year later.

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It's also commonly used - as in the case of the assassination of Archduke Franz Ferdinand, which set off WWI in 1914 - to reference events which have widespread ramifications.

We wonder if the bullet which ended Charlie Kirk's life in Utah on Wednesday might similarly light the fuse to an even bigger conflagration.