India, Sept. 11 -- Twenty-five years after 9/11, the enduring lesson is stark: force can disrupt extremism, but only justice and a more equitable world order can address its deeper roots

It has been twenty-five years since two aircraft struck the World Trade Center, a third hit the Pentagon, and a fourth crashed in a Pennsylvania field after passengers fought back. Nearly 3,000 people died in under two hours. The world that woke up on September 12, 2001, was irreversibly different, and much of what followed - for better and for worse - still shapes how nations approach security today. 9/11 rewrote the global rulebook. NATO invoked its collective-defence clause for the only time in its history. Airports became fortresses, intelligence age...