BERKELEY, Calif. (AP) — Charles Darwin's theory of evolution. Stephen Hawking on the Big Bang. Millions of students for civil rights and against the Vietnam War.

They were provocative in their times, products of an ideal that holds universities as sacrosanct spaces for debate, innovation — and even revolution. But on Israel and the resulting war in Gaza are testing that perception, as the collides with and in places where freedom of expression is supposed to rule.

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