Study Guide on the Effectiveness of the DHS After 9/11

Assessing the Effectiveness of the Department of Homeland Security, 20 Years After 9/11

Introduction to the Department of Homeland Security (DHS)

• Purpose of the Paper: To assess the effectiveness of the DHS and the broader U.S. homeland security enterprise in counterterrorism since the September 11 attacks, analyzing its evolution, successes, and challenges over two decades. Key questions include:

  • Has DHS been successful in preventing major terrorist attacks on U.S. soil?

  • Is its current organizational structure and strategic focus appropriate for addressing today’s complex and evolving terrorism threats, including both international and domestic sources?

  • What reforms or shifts in strategy are necessary to enhance its effectiveness going forward?

• Background: The tragic events of September 11, 2001, exposed critical vulnerabilities in national security and highlighted a lack of coordinated efforts across various federal agencies. In response, the Homeland Security Act of 2002 was enacted, establishing the DHS. This monumental undertaking merged 22 disparate federal departments and agencies, bringing together diverse functions from border control and immigration to emergency management and critical infrastructure protection, all under a unified command to coordinate national homeland security efforts.

  • Initial core focus was on combating international terrorism, primarily perceived threats from groups like al Qaeda and its affiliates, which were responsible for the 9/11 attacks.

Effectiveness of DHS

• DHS, often working in conjunction with other federal, state, and local agencies, has reportedly thwarted approximately 230 terrorist attacks and violent plots in the U.S. since 9/11. These thwarted plots range from sophisticated bomb schemes to smaller-scale targeted violence, showcasing a broad scope of operational successes.

• Comparative Data: Analytical findings from reputable organizations like the Center for Strategic and International Studies (CSIS) and comprehensive Washington Post analyses provide a sobering contrast:

  • From 9/11 to the end of 2020, a total of 81 terrorist attacks successfully occurred within the United States. These attacks tragically resulted in 276 fatalities (this count specifically excludes the attackers themselves), underscoring the persistent threat despite prevention efforts.

• Credit Distribution: While DHS undeniably deserves significant credit for its role in preventing numerous attacks through intelligence sharing, border security, and critical infrastructure protection, the majority of the direct credit for thwarting specific plots often goes to other federal agencies. The FBI, with its extensive domestic intelligence and investigative capabilities, the broader Intelligence Community (IC) for collecting and analyzing foreign intelligence, and local law enforcement agencies for their on-the-ground surveillance and community engagement, have been instrumental in disrupting plots and apprehending suspects.

Evolution of the Terrorism Threat

• Change over Time: The nature of the terrorist threat in the U.S. has undergone a profound transformation over the past two decades. Initially dominated by external, internationally directed plots, the threat landscape has progressively shifted to one largely characterized by domestic threats, emanating from within the United States.

  • Historically, DHS has been criticized for its institutional biases and structural inclination to overlook domestic terrorism, maintaining a primary (and often exclusive) focus on international threats, particularly those linked to Islamist extremist groups. This oversight created significant blind spots.

DHS Responsibilities

• Security Scope: The broad mandate of DHS encompasses a diverse array of critical security functions, including:

  • Securing U.S. borders and enforcing immigration laws through agencies like CBP and ICE.

  • Protecting against sophisticated cyber threats to critical infrastructure and government networks.

  • Ensuring disaster preparedness and response, coordinating federal efforts during natural disasters and emergencies.

  • Safeguarding transportation systems, critical infrastructure, and national leadership.

  • Conducting counter-smuggling and counter-narcotics operations.

• Counterterrorism remains the department’s foundational and explicit core mission, as consistently underscored by key foundational documents and strategic plans over the years:

  • The 2014 DHS Quadrennial Homeland Security Review explicitly stated: "Preventing terrorist attacks on the Nation is and should remain the cornerstone of homeland security, dictating resource allocation and strategic planning."

  • Subsequent strategic plans and departmental guidance continue to reaffirm counterterrorism as the primary, overarching goal, even as other threats emerge and demand attention.

Defining Terrorism and Counterterrorism

Definitions

• Terrorism (DHS Definition): Generally characterized as criminal violent activity with the intent to intimidate, coerce, or influence a civilian population or government, or to affect the conduct of governmental actions through means such as mass destruction, assassination, or kidnapping. This definition emphasizes the use of violence to achieve broader societal or political objectives.

• Alternative Definitions: The definition of terrorism can vary significantly across agencies and legal frameworks, often leading to challenges in classification and response:

  • U.S. Federal Laws, such as those related to material support for terrorism, often add explicit requirements for ideological or political objectives, distinguishing terrorism from ordinary violent crime.

  • The Department of Defense (DoD) defines terrorism as the illegal use of violence or threat of violence, specifically motivated by religious or political beliefs, to instill fear, coerce, or intimidate governments or societies in pursuit of goals that are generally political, religious, or ideological.

Sub-Categories of Terrorism

Accurate classification is crucial for effective counterterrorism strategies:

1. International Terrorism: Involves attacks explicitly planned, directed, or inspired by foreign terrorist organizations (FTOs) operating from overseas, such as al Qaeda, ISIS, or their designated affiliates. These groups often have transnational networks and capabilities.

2. Homegrown Violent Extremists (HVE): Individuals operating entirely within the U.S. who are radicalized and inspired by the ideology and propaganda of FTOs (e.g., ISIS or al Qaeda), but who act independently without direct command or operational guidance from these foreign entities. They often consume extremist content online.

3. Domestic Terrorism (DT): Terrorism where the perpetrators are based and operate entirely within the U.S., and their violent acts are not motivated or coordinated by foreign terrorist organizations. This category includes a wide spectrum of ideologically driven violence, encompassing various motivations such as:

   • Right-wing extremism (e.g., anti-government, sovereign citizen, white supremacist ideologies).

   • Left-wing extremism (e.g., anarchist, environmental extremist groups).

   • Racially or ethnically motivated violent extremism.

   • Other single-issue extremist movements (e.g., anti-abortion violence).

4. Targeted Violence: A distinct category often overlapping with domestic terrorism but sometimes lacking clear, overt ideological motives. These attacks are typically characterized by individuals targeting specific persons, locations, or groups, often exemplified by mass casualty events like school shootings, workplace violence, or public attacks motivated by personal grievances, mental health crises, or a diffused mix of personal and ideological grievances.

Counterterrorism vs. Antiterrorism

These terms, while often used interchangeably, refer to distinct approaches:

• Counterterrorism: Encompasses proactive offensive actions taken against terrorist networks and their infrastructure with the aim of neutralizing threats before they materialize. This typically includes intelligence gathering, preemptive military operations, law enforcement disruptions, financial sanctions, and cyber operations, often conducted overseas or clandestinely by agencies like the DoD, CIA, and FBI.

• Antiterrorism: Refers to defensive measures designed to reduce the vulnerability of individuals, personnel, and critical infrastructure to terrorist acts. These measures are often passive or reactive and include the establishment of security protocols, physical barriers, access controls, surveillance systems, public awareness campaigns, and emergency response planning, focusing on hardening targets and mitigating consequences.

• DHS Terminology: Within the Department of Homeland Security, the term ‘counterterrorism’ is frequently used more broadly than DoD, encompassing both proactive offensive actions and defensive antiterrorism measures, reflecting its multifaceted role in protecting the homeland from all forms of terrorist threats.

Measuring Counterterrorism Effectiveness

Challenges in Assessment

• Difficulty in Statistical Analysis: Quantitatively assessing the effectiveness of counterterrorism efforts is inherently challenging due to the low absolute number of successful incidents in a highly populated country. The absence of an attack is difficult to directly attribute to specific policy actions, making statistical analysis complex and often inconclusive.

• Importance of Near-Misses and Unsuccessful Plots: Rather than solely focusing on successful attacks, it is crucial to analyze near-misses and unsuccessful plots. These incidents provide invaluable data points, indicating the persistent and evolving nature of ongoing threats, the methods terrorists employ, and the points at which prevention efforts proved effective.

Effectiveness Metrics

• Preventing Attacks as a Measure: A primary metric for assessing counterterrorism efficacy is the demonstrated ability of DHS and partner agencies to prevent actual attacks and effectively thwart planned plots.

  • Previous extensive studies identified approximately 109 unsuccessful attacks and foiled plots between 9/11 and 2012.

  • This figure was subsequently updated to approximately 230 thwarted attacks through 2020. Many of these disruptions are achieved through traditional law enforcement methods and intelligence leading to arrests:

    • A significant majority of plot disruptions stem from tips provided by the public, concerned citizens, or confidential informants, highlighting the importance of community engagement.

    • Many others result from tactical actions taken by federal, state, and local law enforcement agencies, often through surveillance, undercover operations, and interdictions based on intelligence.

    • Instances involving sophisticated undercover operations by the FBI or focused investigations by local police departments have repeatedly exposed and dismantled terrorist cells or lone actors.

Insights on Plot Data

Detailed analysis of the 230 foiled plots provides critical insights into the evolving threat landscape:

• Of the 230 foiled plots:

  • Only 28 were definitively directed or explicitly commanded by foreign terrorist organizations.

  • A substantial 118 plots involved homegrown violent extremists, illustrating the growing challenge of self-radicalized individuals operating domestically but inspired by international jihadi narratives.

  • The remaining 84 plots were categorized as domestic terrorists, reflecting the rising threat from various ideologically motivated groups operating without foreign direction.

Evolving Terrorism Landscape and DHS Response

• Changing Nature of Terrorism: The initial national security apparatus post-9/11 was designed to combat international, often state-sponsored, or large-scale non-state threats. However, recent shifts unequivocally indicate a substantial rise in domestic threats, particularly ideologically motivated violence emanating from various extremist movements within the U.S.

• Failure to Adapt: DHS has faced significant criticism for being slow to recognize and effectively adjust its strategies and resource allocation to address these rising domestic threats, particularly from white supremacy and anti-government extremism. A notable and highly publicized failure in adapting to this evolving threat culminated in the January 6, 2021, Capitol attack, where federal agencies, including DHS, were perceived as unprepared for organized domestic extremist violence aimed at government institutions.

Recent Domestic Threat Dynamics

• Despite lower numbers of successful attacks stemming directly from international terrorism plots, there’s a consistent and alarming increase in domestic violence driven by various extremist ideologies. This includes:

  • Racially or ethnically motivated violent extremism (e.g., white supremacists).

  • Anti-government and anti-authority extremism (e.g., sovereign citizens, militia movements).

  • Other single-issue extremist ideologies.

  • Critics indicate a significant delay in addressing this fundamental change effectively, culminating in severe security lapses and threats like the violent assault on the U.S. Capitol.

Specific Examples

• Attempts by Foreign Terrorist Organizations (FTOs): Post-9/11, only a handful of attacks were directly orchestrated by FTOs. A key example is the December 6, 2019, Naval Air Station Pensacola shooting, where a Saudi aviation student, reportedly inspired by al Qaeda, killed three U.S. sailors, highlighting the persistent, albeit diminished, threat of foreign-directed violence.

• Homegrown Violence: A series of violent attacks and plots have been unambiguously characterized as homegrown, illustrating the profound shift in the threat landscape. Examples include Faisal Shahzad’s attempted Times Square bombing in 2010 (inspired by the Pakistani Taliban) and Omar Mateen’s 2016 Pulse nightclub shooting (inspired by ISIS). These incidents underline the challenge of detecting and disrupting self-radicalized individuals.

Final Assessments and Implications

• Recommendations for DHS: To remain effective and relevant in securing the nation, DHS’s efforts must fundamentally evolve and adapt to adequately address emerging and persistent threats. The critical need for continued adaptation in policies, strategies, and resource allocation to confront domestic extremism and implement forward-looking preventive measures is paramount.

  • Recent policy shifts and initiatives under the Biden administration have shown promising steps towards a more integrated approach to combating domestic violent extremism but require robust continuation, sustained funding, and rigorous assessment in the future to ensure their long-term efficacy.

• The concluding argument states:

  • DHS appears undeniably necessary due to the continuously increased and complex domestic terrorism threat landscape, coupled with the ongoing critical need for enhanced coordination among various federal, state, and local agencies to address these diffuse threats.

  • Focus Shift Required: A fundamental emphasis in DHS’s strategic posture, operational planning, and resource allocation must pivot decisively from its traditional, almost exclusive focus on international terrorism towards a more balanced and robust approach to addressing the diverse, evolving, and often homegrown domestic threats that now represent the most significant danger to homeland security.

Conclusion

• The Department of Homeland Security’s institutional inertia and perceived lack of adaptation to the changing nature of terrorism, particularly the rise of domestic extremism, culminated in serious security lapses and criticisms, as vividly seen in recent history.

• Moving forward, it will be vital for DHS to significantly improve its agility and responsiveness in addressing evolving domestic and international threats. Balancing its expansive mission roles—from cybersecurity and critical infrastructure protection to border security and disaster management—against the imperative of effective counterterrorism strategies will define its success in protecting the nation in the coming decades.