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Is the Philippines the Next Caliphate?, Foreign Policy, November 27, 2017 (with Colin P. Clarke).
Oil, Extortion Still Paying Off for ISIS, The Cipher Brief, October 27, 2017.
Can the Islamic State Survive Financially?, Lawfare, May 15, 2017 (with Colin P. Clarke).
Are Terrorists Using Cryptocurrencies?, Foreign Affairs, April 21, 2017 (with David Manheim, Josh
Baron, and Cynthia Dion-Schwarz).
After the Battle for Mosul, Get Ready for the Islamic State to Go Underground, War on the Rocks,
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To Defeat ISIS, Focus on Its Real Sources of Strength, The National Interest, December 4, 2015
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[The Enemy You Know and the Ally You Don’t](), Foreign Policy, June 23, 2015 (with Benjamin
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Who Runs the Islamic State? US News World Report, May 22, 2015 (with Benjamin Bahney).
Countering ISIL’s Financing. Testimony presented before the House Financial Services Committee
on November 13, 2014.
Hit the Islamic State’s Pocketbook, Newsday, October 5, 2014. (with Benjamin Bahney)
Hitting ISIS Where It Hurts: Disrupt ISIS’ Cash Flow in Iraq, The New York Times, August 13,
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Obama’s Iraq Dilemma: Where did ISIS come from, and can anything be done about it?, US News
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Partner Capacity in Counterinsurgency Campaigns, Research Brief, RAND Corporation, February
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Ask the Experts: Do Targeted Killings Work?, Op-Ed, Council on Foreign Relations, September 24,
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Drone Strikes Keep Pressure on al-Qaida, Op-Ed, Providence Journal, August 18, 2012.
Reprinted on The RAND Blog, August 22, 2012
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