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World leaders are expressing their sympathies for the victims of the 9/11 attacks. British Prime Minister Boris Johnson says the terrorists had failed to "shake our belief in freedom and democracy."
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On the 20th anniversary of the 9/11 attacks, the nation paused to remember. Ceremonies took place at memorials in New York City; in Shanksville, Pa.; and at the Pentagon.
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A Southern California community grapples with the legacy of being secretly surveilled by the FBI. Twenty years later, the matter is a legal fight that has reached the Supreme Court.
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Loved ones of people lost on United Airlines Flight 93 share how they struggled with grief, embraced it and discovered new depths of mourning over 20 years.
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At least 67 undocumented immigrants, mainly from Mexico and South America, who worked at the World Trade Center on Sept. 11, are still considered missing.
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No boarding pass or ID was needed to go to the gate, and 4-inch-blade knives were allowed aboard planes. Now we take off shoes, can't have liquids over 3.4 oz and go through high-tech body scanners.
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In 2001, as the nation mourned those killed on 9/11, the government tried to find its footing to prevent more terrorist attacks. In the 20 years since, the nature of those threats has evolved.
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As the 20th anniversary of 9/11 approaches, Colorado Edition's Erin O’Toole spoke with KUNC news director Brian Larson about his experience covering commemoration events in the first few years after the attack.
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Since 2009, thousands of participants have made their way up and down the steps during the Red Rocks Amphitheater 9/11 memorial stair climb to honor the firefighters who lost their lives at the World Trade Center. But that climb is not the only one in Colorado, nor is it the first.
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Some who witnessed the attacks on the World Trade Center are still suffering from PTSD and depression from the trauma. Help and treatment are available through a special federal program.