Do armed drones reduce terrorism? Here’s the data.
This research analyzes patterns of terrorism in the 18 countries that utilize drones
The U.S. killed al-Qaeda’s leader. That might boost terrorism.
‘Leadership decapitation’ can inspire Islamist extremist groups and followers to carry out more attacks, my research finds
The Islamic State’s leader died this month. What type of leader might come next?
Our book on terrorist leaders gives some clues
The U.S. is pulling out of Afghanistan. Don’t expect an al-Qaeda reboot.
Here’s why the country won’t necessarily become a base for international terrorist attacks
Some good news from 2020: So far, very few Americans have been killed in terrorist attacks.
Despite alarming headlines, domestic terror attacks left fewer Americans dead than in 2019
Here’s how India’s decision to cut Kashmir’s autonomy will affect South Asia — and the world
Watch these four key relationships.
Did bin Laden’s death help the Islamic State?
[caption id="attachment_72869" align="aligncenter" width="960"] An undated photo shows al-Qaeda leader
It’s been 15 years since 9/11. How has al-Qaeda changed?
[caption id="attachment_46093" align="aligncenter" width="960"] In this Sept. 11, 2001 file
Does the Islamic State believe in sovereignty?
[caption id="attachment_21019" align="aligncenter" width="620"] An image made available by the
The Islamic State’s model
[caption id="attachment_20630" align="aligncenter" width="620"] A member of security (L) for