Speech at the 50th rededication of the Eternal Light Peace Memorial, on the escalation of weaponry from Gettysburg to nuclear arsenals and the case for reconciliation.
Summary
Carl Sagan argues at Gettysburg that modern nuclear and conventional warfare have made humanity dangerously vulnerable, using historical comparisons to show the escalating destructive power of weapons. He calls for arms control, disarmament, and broader human identification, urging nations to choose peace and cooperation over carnage.
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