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Coverage marking a quarter-century since the September 11 attacks examined how conspiracy theories about the events have moved from the fringes into mainstream American political discourse, fueled by social media and eroding trust in government institutions. New analysis also mapped the war toll stemming from the post-9/11 conflicts in Afghanistan and Iraq. The CIA has released dozens of newly declassified documents on Osama bin Laden and al-Qaeda, including a 1998 briefing that warned then-President Clinton that bin Laden's 'preferred option is to strike the US on its own soil in Washington.' Separately, former US ambassador Zalmay Khalilzad, a top diplomat involved in the post-9/11 wars, gave an account acknowledging mistakes in how the United States handled the Afghanistan and Iraq wars, adding new detail to the retrospective look at the era's strategic missteps.