In the wake of U.S. President Donald Trump’s threat on social media to destroy an entire civilization ahead of a fragile Iran ceasefire, legal experts are questioning whether such incendiary language can amount to a war crime — even if it is never carried out...

“The U.S. stands out because it historically has aggressively demanded that other countries comply with international law while excepting itself from key provisions and treaties,” Eric Posner, a professor at the University of Chicago Law School, told POLITICO.

“To be sure, other countries are also selective in their approach to international legal commitments,” he added.

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