Opinion: 9/11 at 25: Has the US learned anything from its 'war on terror'?

Opinion: 9/11 at 25: Has the US learned anything from its 'war on terror'? A quarter century is enough time to separate history from hysteria, consequences from intentions and reality from propaganda. On 11 September 2001, nearly 3,000 people were killed in horrific attacks that shocked the United States and the world.