come undone

Yet far too many Americans are imperiling the future once more by ignoring the clanging and rattling truth that could cause the entire country to come undone.

As in what if the visions of some rioters had been realized, what if the nation was again broken by Civil War, what if the democratic experiment called America had come undone?

Republican Paul Graves’ work was about to come undone.

People whispered that Nasser al-Astal had come undone, dazed by grief.

So how exactly did it all come undone?