Science, Technology, and Public Policy

Fourteen years since the Arms Control and Disarmament Agency (ACDA) was dissolved, Leon Ratz (HKS '13) explores the national security implications of the loss of America's independent arms control agency. Ratz argues that the organizational merger has weakened the federal government's decision-making and analytic capabilities when it comes to addressing critical arms control and non-proliferation challenges.

Toxic inhalation hazard (TIH) chemicals such as chlorine gas and anhydrous ammonia are among the most dangerous of hazardous materials. Rail transportation of TIH creates risk that is not adequately reflected in the costs, creating a TIH safety and security externality. This paper describes and evaluates policy alternatives that might effectively mitigate the dangers of TIH transportation by rail. After describing the nature of TIH risk and defining the TIH externality, general policy approaches to externalities from other arenas are examined. Potential risk reduction strategies and approaches for each segment of the supply chain are reviewed. The paper concludes by summarizing policy options and assessing some of the most promising means to reduce the risks of transportation of toxic inhalation hazards. Four policy approaches are recommended: internalizing external costs through creation of a fund for liability and claims, improving supply chain operations, enhancing emergency response and focusing regulatory authority. It is further suggested that the Department of Transportation convene a discussion among stakeholder representatives to evaluate policy alternatives.

This study examines different policy scenarios for reducing GHG emissions and oil consumption in the U.S. transportation sector using a variant of the National Energy Modeling System (NEMS).

Discussion Paper by Dr. Ashton B. Carter