Analysis of 15 Failed Terrorist Plots Against Surface Transportation Provides Insight into Tactics, Weapons

The Mineta Transportation Institute has released its newest research report, Carnage Interrupted: An Analysis of Fifteen Terrorist Plots Against Public Surface Transportation, which examines several factors in 13 plots that authorities uncovered and foiled before attacks could be carried out. It also presents an additional two cases in which terrorists attempted to carry out attacks that failed. Principal investigators were Brian Michael Jenkins and Joseph Trella.

"We can learn much from terrorists' failures," said Mr. Jenkins, "because they provide insights into terrorist ambitions, clues to possible new directions in tactics and weapons, and details about how the plots evolve. These details often are more difficult to discern when an attack has succeeded and its perpetrators are dead or have fled."

The reports analyze plots in the West from 1997-2012, primarily in the United States and the United Kingdom because they have been frequent targets. These incidents have involved publicized arrests and trials, which provide additional information.

Among others, the 15 plots include:

  • 1997 – Flatbush Plot (New York)
  • 2002 – Poison Gas on London Underground Plot
  • 2004 – Herald Square Bomb Plot (New York)
  • 2005 – Melbourne and Sydney Terrorist Plots
  • 2006 – Milan Metro Bomb Plot
  • 2006 – Attempted German Train Bombings (Cologne)
  • 2008 – Barcelona Metro Bomb Plot
  • 2009 – Zazi Bomb Plot (New York)

  • 2010 – Washington Metro Bomb Plot (Washington, DC)

Jenkins explains that these plots were part of an ongoing global campaign of terrorism directed against a variety of targets in Western nations. The campaign was inspired by continuing exhortations from al Qaeda and waged by individuals or small groups determined to be part of the global armed struggle.

The report describes each plot in terms of the terrorists' plan, their motivation, objective, target selection, tactics and weapons, reconnaissance, timing, security measures in place at the target, and how the plot was disrupted.

Jenkins said, "Terrorists tend to imitate what's been done before, so they will try to replicate attacks -- including targets, tactics, and techniques -- that they see as successful. It is not possible to identify the source of inspiration or instruction for all of the 15 cases, but some spectacular precedents are likely to have inspired these plots. For example, four of the plots involved chemical or biological substances -- poison gas or ricin. It seems highly likely that the plotters in these cases had in mind the 1995 sarin attack in Tokyo, where terrorists dispersed nerve gas in subways, killing 12 and sending over 5,000 to hospitals. Further inspiration and instruction came from al Qaeda's own interest in chemical and biological weapons."

Jenkins further noted that none of these exotic plots succeeded. Indeed few progressed beyond the talking stage, and it seems doubtful that any would have resulted in mass casualties.

"By mid-decade the poison fad was over," he said. "Meanwhile, terrorists in Madrid and London demonstrated that by using more reliable explosive devices on trains and subways, terrorists could achieve the slaughter they desired. Multiple bombs became the new prototype for terrorist attacks, a pattern that continued through the end of the decade."

The complete report is available for free download at http://transweb.sjsu.edu/project/2979.html.

Featured

  • 2025 Gun Violence Statistics Show Signs of Progress

    Omnilert, a national leader in AI-powered safety and emergency communications, has released its 2025 Gun Violence Statistics, along with a new interactive infographic examining national and school-related gun violence trends. In 2025, the U.S. recorded 38,762 gun-violence deaths, highlighting the continued importance of prevention, early detection, and coordinated response. Read Now

  • Big Brand Tire & Service Rolls Out Interface Virtual Perimeter Guard

    Interface Systems, a managed service provider delivering remote video monitoring, commercial security systems, business intelligence, and network services for multi-location enterprises, today announced that Big Brand Tire & Service, one of the nation’s fastest-growing independent tire and automotive service providers, has eliminated costly overnight break-ins and significantly reduced trespassing and vandalism at a high-risk location. The company achieved these results by deploying Interface Virtual Perimeter Guard, an AI-powered perimeter security solution designed to deter incidents before they occur. Read Now

  • The Evolution of ID Card Printing: Customer Challenges and Solutions

    The landscape of ID card printing is evolving to meet changing customer needs, transitioning from slow, manual processes to smart, on-demand printing solutions that address increasingly complex enrollment workflows. Read Now

  • TSA Awards Rohde & Schwarz Contract for Advanced Airport Screening Ahead of Soccer World Cup 2026

    Rohde & Schwarz, a provider of AI-based millimeter wave screening technology, announced today it has won a multi-million dollar award from TSA to supply its QPS201 AIT security scanners to passenger security screening checkpoints at selected Soccer World Cup 2026 host city airports. Read Now

  • Brivo, Eagle Eye Networks Merge

    Dean Drako, Chairman of Brivo, the leading global provider of cloud-native access control and smart space technologies, and Founder of Eagle Eye Networks, the global leader in cloud AI video surveillance, today announced the two companies will merge, creating the world’s largest AI cloud-native physical security company. The merged company will operate under the Brivo name and deliver a truly unified cloud-native security platform. Read Now

New Products

  • PE80 Series

    PE80 Series by SARGENT / ED4000/PED5000 Series by Corbin Russwin

    ASSA ABLOY, a global leader in access solutions, has announced the launch of two next generation exit devices from long-standing leaders in the premium exit device market: the PE80 Series by SARGENT and the PED4000/PED5000 Series by Corbin Russwin. These new exit devices boast industry-first features that are specifically designed to provide enhanced safety, security and convenience, setting new standards for exit solutions. The SARGENT PE80 and Corbin Russwin PED4000/PED5000 Series exit devices are engineered to meet the ever-evolving needs of modern buildings. Featuring the high strength, security and durability that ASSA ABLOY is known for, the new exit devices deliver several innovative, industry-first features in addition to elegant design finishes for every opening.

  • Mobile Safe Shield

    Mobile Safe Shield

    SafeWood Designs, Inc., a manufacturer of patented bullet resistant products, is excited to announce the launch of the Mobile Safe Shield. The Mobile Safe Shield is a moveable bullet resistant shield that provides protection in the event of an assailant and supplies cover in the event of an active shooter. With a heavy-duty steel frame, quality castor wheels, and bullet resistant core, the Mobile Safe Shield is a perfect addition to any guard station, security desks, courthouses, police stations, schools, office spaces and more. The Mobile Safe Shield is incredibly customizable. Bullet resistant materials are available in UL 752 Levels 1 through 8 and include glass, white board, tack board, veneer, and plastic laminate. Flexibility in bullet resistant materials allows for the Mobile Safe Shield to blend more with current interior décor for a seamless design aesthetic. Optional custom paint colors are also available for the steel frame.

  • Luma x20

    Luma x20

    Snap One has announced its popular Luma x20 family of surveillance products now offers even greater security and privacy for home and business owners across the globe by giving them full control over integrators’ system access to view live and recorded video. According to Snap One Product Manager Derek Webb, the new “customer handoff” feature provides enhanced user control after initial installation, allowing the owners to have total privacy while also making it easy to reinstate integrator access when maintenance or assistance is required. This new feature is now available to all Luma x20 users globally. “The Luma x20 family of surveillance solutions provides excellent image and audio capture, and with the new customer handoff feature, it now offers absolute privacy for camera feeds and recordings,” Webb said. “With notifications and integrator access controlled through the powerful OvrC remote system management platform, it’s easy for integrators to give their clients full control of their footage and then to get temporary access from the client for any troubleshooting needs.”