Lisa Hajjar, University of California, Santa Barbara
A scholar who has visited Guantanamo 11 times to observe legal proceedings in the 9/11 terrorism case explains why the conflict continues to delay the case going to trial.
Devastation: the World Trade Center collapses after being hit by an aircraft hijacked by terrorists.
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Islamophobia increased post-9/11. Twenty years later, American Muslims are still dealing with the mental health effects – and research barriers limit what is known about what puts them at risk.
In a time of increasingly complex geopolitical entanglements and moral failings, these films articulate a yearning for unsullied heroism, effective leadership and appropriate responses to crises.
99% of people below the floors where the planes struck the twin towers evacuated successfully, although their journey was fraught with danger. Their stories have influenced today’s skyscraper designs.
More 9/11 responders died from physical and mental health issues after the terrorist attacks than on the day itself. And survivors are still suffering 20 years later.
A survey of U.S. history teachers found they teach about 9/11 primarily on the date of the anniversary.
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The 20th anniversary of the Sept. 11 attacks is an opportunity for teachers to focus less on recreating the day and more on what students can learn from it, two curriculum experts argue.
All that remains: the Manhattan skyline seen across the debris of the World Trade Center at the Fresh Kills landfill, January 2002.
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The first modern, lethal drone strike took place one month after 9/11. Twenty years later, our view of warfare and military personnel has completely changed.
On Sept. 17, 2001, Transportation Secretary Norman Mineta, left, met with President George W. Bush and others.
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Susan H. Kamei, USC Dornsife College of Letters, Arts and Sciences
In the wake of 9/11, some called for rounding up whole groups of people viewed as potential threats to the nation. But Transportation Secretary Norman Mineta knew the U.S. had done that before.
In 2014, the Islamic State group could draw crowds of supporters, like these in Mosul, Iraq. But actual fighting recruits have been harder to come by.
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Charles Kurzman, University of North Carolina at Chapel Hill
A second plot was planned on 9/11, but there were too few terrorists to carry it off. Twenty years later, al-Qaida and its offshoot the Islamic State group still have trouble attracting recruits.