Present the contentious issue of gun control in the United States. Features a section on the movement to allow gun carrying on college campuses, covers recent public shootings including that of Sandy Hook and the Aurora Theater, includes court rulings as D.C. v. Heller, McDonald v. Chicago, and others, offers new data on gun ownership, gun deaths, school shootings, and public opinion on gun control, looks at NRA politics in recent elections, examines ATF role changes in light of increased border patrols and heightened Mexican drug violence and explores phenomena related to social media including gun meet-ups