FROM THE EDITOR.

• Author: Cruickshank, Paul
• Position: Editorial

The murder earlier this month of journalist Lyra McKee in Northern Ireland on the night before Good Friday illustrates the fragility of peace in a region in which terrorist violence has persisted. In our cover article, Aaron Edwards writes that this was "the latest in a series of incidents that have raised the specter of a surge in terrorist violence in Northern Ireland." In examining the evolution of the threat from militant groupings on both sides of the sectarian divide, he notes there has been a "blurring of the concepts of terrorism and criminality that challenges orthodox perspectives on the security landscape in Northern Ireland."

Our interview is with Edmund Fitton-Brown, the Coordinator of the ISIL (Daesh)/Al-Qaida/Taliban Monitoring Team at the United Nations.

This issue features the concluding article of a two-article series focused on IED and WMD network convergence. The first article, published in our February 2019 issue, warned there was a high risk that profit-minded suppliers within vast, transnational IED networks may expand in the future into WMD proliferation. In the second article, Major Stephen Hummel, Lieutenant Colonel Douglas McNair, Colonel F. John Burpo, and Brigadier General...