According to the United Nations, 9.6 billion people will inhabit our planet by 2050. Population growth and movement will have an enormous impact on global dynamics in the twenty-first century, in both the developing world as well as in advanced industrialized societies. In light of this global demographic reality, this issue of the Georgetown Journal of International Affairs focuses on the topic of “Destabilizing Demographics,” exploring the opportunities and challenges presented by dynamic population patterns and structures. Demographic shifts affect multiple facets of international affairs, impacting economies, modifying politics, and reshaping the fabric of our societies. These changes could have catastrophic international consequences if ignored or evaded. However, as this issue’s Forum demonstrates, the future holds promise for those who choose to reorganize on the cusp of significant population transformation. Adaptation as a form of mitigation must be informed by diverse solutions and multi-sectoral cooperation. Consider, for example, the intersection of family planning and climate change, or the connection between gender gaps and crime. Through pragmatic policymaking and international collaboration, seismic demographic change may not necessitate disaster. We round out this issue with articles regarding decidedly twenty-first century concerns: communication, integration, and globalization. Moha Ennaji describes the challenges of Berber language incorporation in Morocco and its significance to democratic reform. Dan Saxon examines the role of human judg­ment in semi-autonomous weapons use, questioning the ethics of unmanned machines. Andrés Monroy-Hernández and Luis Daniel Palacios analyze the utility, efficacy, and implications of citizen journalism within Mexico’s ongoing drug war. And Lawrence Gostin and Alexandra Phelan explore how, in an increasingly interconnected world, the international community can collectively prevent and control the spread of infectious diseases.

The Georgetown Journal of International Affairs is the official publication of the Edmund A. Walsh School of Foreign Service at Georgetown University. Each issue of the journal provides readers with a diverse array of timely, peer-reviewed content penned by top policymakers, business leaders, and academic luminaries. The Journal takes a holistic approach to international affairs and features a ‘Forum’ that offers focused analysis on a specific key issue with each new edition of the publication, as well as nine regular sections: Books, Business & Economics, Conflict & Security, Culture & Society, Law & Ethics, A Look Back, Politics & Diplomacy, Science & Technology, and View from the Ground.

This issue of the Georgetown Journal of International Affairs focuses on the topic of “Social Media & Social Activism.” While the jury is still out on the degree to which social media has impacted traditional activism, these evolving technologies undoubtedly have transformed modern social movements. Still, we do not wish to suggest that the causal link follows only one direction. Indeed, it will be interesting to observe what future effects social activism will have on the information technology industry as it grapples with the increasing complexities associated with doing business globally—across cultures and government types—in a sector where national laws differ greatly and where international norms are ill-defined or nonexistent. This issue’s Forum considers responses taken and methods employed by major stakeholders, from grassroots activists to state governments to multinational information technology companies.

The Georgetown Journal of International Affairs is the official publication of the Edmund A. Walsh School of Foreign Service at Georgetown University. Each issue of the journal provides readers with a diverse array of timely, peer-reviewed content penned by top policymakers, business leaders, and academic luminaries. The Journal takes a holistic approach to international affairs and features a ‘Forum’ that offers focused analysis on a specific key issue with each new edition of the publication, as well as nine regular sections: Books, Business & Economics, Conflict & Security, Culture & Society, Law & Ethics, A Look Back, Politics & Diplomacy, Science & Technology, and View from the Ground.

With the recent catastrophe in Indonesia, the topic of tsunamis could not be more timely. This book, volume fifteen in a distinguished series surveying the frontiers of ocean science and research, looks at every aspect of the current science of tsunamis. The world’s foremost experts write about the dynamics of geophysical processes involved in tsunami generation, propagation, and inundation, along with the statistical and geophysical properties of tsunami recurrence, and their application to tsunami forecasts and warnings. Together, their work constitutes the first comprehensive overview of a topic of paramount importance in ocean science today. Coinciding with the recent completion of the United States, enhanced tsunami warning program—which will provide an unprecedented volume of data on tsunamis in the deep ocean—this book will help crystallize a research agenda and foster the study of this critical issue in our understanding of the sea.

In the manifold, multidisciplinary efforts of science to understand and manage our planet, contemporary ocean science plays an essential role. This new volume in the series The Sea advances these efforts with a clear focus on one of the ocean’s more significant deadly phenomena.