NEW YORK (AP) — It’s not polite, as a general rule, to visit your hosts and criticize the way they do things. Unless, that is, you’re helping to pay the rent.

World leaders have spent the past week at the United Nations doing just that, convening at its grandiloquent headquarters to tell each other — and those who administer the planet's most prominent global institution — that the foundational pillars are cracked, outdated and not in good working order.

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