This report describes combined results from two fieldings of a survey of gun policy experts. In particular, respondents estimated the likely effects of 19 gun policies on ten outcomes, such as firearm homicides and the right to bear arms. Researchers use the results to identify where experts agree and disagree the most and whether disagreements stem from assumptions about the effects of gun policies or from differences in policy objectives.

This report examines potential transformations that could alter Russia’s current cooperative stance in the Arctic. It analyzes current security challenges related to climate and geography, economy, territorial claims, and military power, suggests some ways in which these could undermine Arctic cooperation, and offers recommendations for the U.S. government to manage the risks to cooperation.

This report examines Mali’s counterterrorism requirements in light of recent evolutions in the country’s security environment: The terrorist threat in Mali is growing, but Mali’s military remains largely ineffective. It is not possible to strengthen Mali’s counterterrorism capabilities in isolation from its general military capabilities, which are in need of fundamental reform.

The authors reviewed literature on White identity terrorism and racially or ethnically motivated violent extremism (REMVE) and analyzed social media data from six platforms that host extremist content. They developed a network map that evaluates REMVE network construction, connectivity, geographic location, and proclivity to violence and found that users in the United States are overwhelmingly responsible for REMVE discourse online.

Criminal activities in cyberspace are increasingly facilitated by burgeoning black markets. This report characterizes these markets and how they have grown into their current state to provide insight into how their existence can harm the information security environment. Understanding these markets lays the groundwork for exploring options to minimize their potentially harmful influence.

As part of a larger study on the future of the post–World War II liberal international order, RAND researchers analyze the health of the existing order and offer implications for future U.S. policy. The study’s overall conclusion is that the postwar order continues to enjoy many elements of stability but is increasingly threatened by major geopolitical and domestic socioeconomic trends that call into question the order’s fundamental assumptions.

To inform improvements to the quality of care delivered by the military health system for posttraumatic stress disorder and major depressive disorder, researchers developed a framework and identified, developed, and described a candidate set of measures for monitoring, assessing, and improving the quality of care. This document describes their research approach and the measure sets that they identified.

Despite the scope of the threat they pose to Mexico’s security, violent drug-trafficking organizations are not well understood, and optimal strategies to combat them have not been identified. While there is no perfectly analogous case from history, Mexico stands to benefit from historical lessons and efforts that were correlated with improvement in countries facing similar challenges related to violence and corruption.

Despite the scope of the threat they pose to Mexico’s security, violent drug-trafficking organizations are not well understood, and optimal strategies to combat them have not been identified. While there is no perfectly analogous case to Mexico’s current security situation, historical case studies may offer lessons for policymakers as they cope with challenges related to violence and corruption in that country.

In 2015, for the first time, millennials outnumbered baby boomers as the largest generational segment of the U.S. population. This report describes how the intelligence community must engage millennials across multiple segments to succeed in the future: millennials as intelligence clients, employees, and partners and as members of the public.