Evaluating and addressing the security and privacy needs of real systems is increasingly a multidisciplinary task. Even if systems could be "fully secured" against all technical vulnerabilities they would still play a role in violating higher-layer policies. For example, most systems can be used to aid and abet crimes that harm persons, steal resources, or play a role in creating risk. Interdisciplinary work has a greater chance at addressing problems beyond technical flaws. In this course, we will use blockchain solutions as a platform for studying these issues.

Discussion of recent literature concerning the geology of the terrestrial planets and moons. Prerequisite: consent of instructor.

Review and discussion of current research in hydrogeology, environmental soil and water sampling, groundwater chemistry, analytical and numerical modeling, isotope hydrology, fluid flow in fractured rock, surface and borehole geophysics, geostatistics, environmental monitoring and remediation, and related topics. Prerequisite: at least one 500-level course in hydrogeology. Credit, 1.

This colloquium examines the causes and the course of the Civil War, its social, economic, and political results during Reconstruction, and the early roots of segregation and the civil rights movement. It will examine the process of emancipation from the perspective of social history, and provide the international context of slavery that led to the war. Violent conflicts over free labor and the political and economic policies pursued by freedpeople, ex-masters, northern policymakers, wage laborers, and African American women will be covered.