Why are we reissuing the paper collection, “Countering Violent Extremism: Scientific Methods and
Strategies”? The answer is simple. Five years later, violent extremism is still an issue. In September 2014, President Obama spoke at the United Nations, calling on member nations to do more to address violent extremism. This was followed by a three-day summit in February 2015 to bring together local, federal, and international leaders to discuss approaches to counter violent extremism. The wisdom contained in this paper collection is more relevant than ever. I encourage everyone to read it, again or for the first time, in whole or in part.