“At what point shall we expect the approach of danger? Shall we expect some transatlantic military giant to step the ocean and crush us at a blow? No! All the armies of Europe, Asia and Africa combined, with the treasures of the earth (our own excepted) in their military chest, with a Bonaparte for a commander, could not, by force, take a drink from the Ohio, or make a track on the Blue Ridge, in a trial of a thousand years. At what point, then, is this approach of danger to be expected? I answer, if it ever reach us, it must spring up amongst us. It can not come from abroad. If destruction be our lot, we must ourselves be its author and finisher. As a nation of freemen, we must live through all time or die by suicide.”

Abraham Lincoln

Lincoln was likely right for the most part, as he was on most matters. What he doesn’t seem to have foreseen – and how could he have – was that we’d foul our own environment sufficiently to poison entire communities, laying waste to our fellow citizens in ways that Lincoln knew was beyond the reach of outside armies.