Recent acts of terrorism in Britain and Europe and the events of 9/11 in the United States have greatly influenced immigration, security, and integration policies in these countries. Yet many of the current practices surrounding these issues were developed decades ago, and are ill-suited to the dynamics of today's global economies and immigration patterns.
At the core of much policy debate is the inherent paradox whereby immigrant populations are frequently perceived as posing a potential security threat yet bolster economies by providing an inexpensive workforce. Strict attention to...

America's approach to terrorism has focused on traditional national security methods, under the assumption that terrorism's roots are foreign and the solution to greater security lies in conventional practices. Europe offers a different model, with its response to internal terrorism relying on police procedures.

Managing Ethnic Diversity after 9/11 compares these two strategies and considers that both may have engendered greater radicalization--and a greater chance of home-grown terrorism. Essays address how transatlantic countries, including the United Kingdom, the United States,...