The 2004 9/11 Commission Report identified failures of imagination, policy, capabilities and management across the US government, according to multiple assessments that revisited the findings ahead of the anniversary. Both the CIA and FBI held pieces of information that, if properly shared and acted upon, could have disrupted the plot by al-Qaeda operatives, a BBC examination of the legacy concluded. That colossal intelligence shortfall, often described in terms of spies, strategies and missed opportunities, prompted the most significant overhaul of the US national security apparatus in decades.
In response, lawmakers established the position of Director of National Intelligence and the National Counterterrorism Center to coordinate efforts among 18 separate intelligence agencies and eliminate information stovepipes, the Brookings Institution noted in its review of post-9/11 changes. A House Permanent Select Committee on Intelligence bipartisan report released last month determined that these steps revolutionized counterterrorism capabilities, enabling better collaboration with state and local officials through entities such as the National Counterterrorism Center. Yet the same review found that nearly two decades of understandable focus on counterterrorism allowed attention to other adversaries and areas such as counterintelligence to lapse.
The House committee’s assessment placed the evolution of threats at the center of its 25-year look-back, reporting that the expansion of the foreign terrorist organization list now includes cartels, criminal networks and ideologically diverse extremist groups. Africa has become the world’s most active terrorism theater, with more than two-thirds of ISIS global activity occurring on the continent and seven of the 10 countries with the highest terrorism-related deaths located there, the committee’s data showed. A parallel House Committee on Homeland Security report issued this week echoed those concerns while outlining more than 20 recommendations for Congress to bolster the Department of Homeland Security’s mission.
General Sir Richard Shirreff, who served as a divisional commander in Iraq, told the BBC that the 2003 Iraq war was based on deeply flawed intelligence. He added, “Have we learnt from it? No, I think we’re bad at learning. It was so obvious as a Commander that we were heading for strategic failure.” The Council on Foreign Relations analysis of intelligence reform impacts reinforced that even the best intelligence matters little if political leadership fails to act on warnings, citing the August 2001 Presidential Daily Brief that flagged Osama bin Laden’s determination to strike the United States.
The Homeland Security committee’s review called for improved information-sharing processes across federal and state, local, tribal and territorial law enforcement through enhanced field presence, according to its published recommendations. Additional proposals include creating uniformity in threat definitions to reflect current realities, increasing awareness of emerging terrorist tactics and supporting research into generative AI terrorism risks. These steps aim to address gaps that persist despite the absence of another large-scale foreign-directed attack on US soil since 2001.
A Council on Foreign Relations expert briefing argued that the terrorist threat to Americans has both changed and grown, with the line between foreign and domestic terrorism having dissolved in ways that strain the National Counterterrorism Center’s original statutory limits. The House Intelligence Committee similarly recommended measuring success by mission outcomes rather than agency ownership, developing joint training across the intelligence community and strengthening partnerships with the private sector. Such measures reflect ongoing adaptation to a landscape where lone actors inspired by online extremism now dominate many domestic incidents.
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