Correspondence issued by the Government Accountability Office with an abstract that begins "To carry out complex national security initiatives--such as combating illicit financing of terrorist activities, undertaking development projects in conflict zones, and countering piracy off the Horn of Africa--U.S. government agencies must coordinate with a large number of organizations in their planning efforts. Our prior work on the federal government's national security initiatives has determined that U.S. agencies face a number of challenges to effectively collaborating with one another, potentially resulting in gaps and overlaps in policy implementation. In particular, we have found that agencies face challenges to developing overarching strategies to achieve common goals, creating effective mechanisms for operating across agencies, and sharing sensitive information. For example, our work has shown that the Department of State (State) and the U.S. Agency for International Development (USAID) have different planning time frames than the Department of Defense (DOD), which poses a challenge for the three organizations. This report summarizes and formally transmits the enclosed briefing in response to Section 1055 of the Ike Skelton National Defense Authorization Act for Fiscal Year 2011, which required us to examine the need for and implications of a common alignment of world regions in …

In support of DOE/EERE's Fuel Cell Technologies Program Hydrogen Sorption Center of Excellence (HSCoE), UNC conducted Nuclear Magnetic Resonance (NMR) measurements that contributed spectroscopic information as well as quantitative analysis of adsorption processes. While NMR based Langmuir isotherms produce reliable H2 capacity measurements, the most astute contribution to the center is provided by information on dihydrogen adsorption on the scale of nanometers, including the molecular dynamics of hydrogen in micropores, and the diffusion of dihydrogen between macro and micro pores. A new method to assess the pore width using H2 as probe of the pore geometry was developed and is based on the variation of the observed chemical shift of adsorbed dihydrogen as function of H2 pressure. Adsorbents designed and synthesized by the Center were assessed for their H2 capacity, the binding energy of the adsorption site, their pore structure and their ability to release H2. Feedback to the materials groups was provided to improve the materials’ properties. To enable in situ NMR measurements as a function of H2 pressure and temperature, a unique, specialized NMR system was designed and built. Pressure can be varied between 10-4 and 107 Pa while the temperature can be controlled between 77K and room …