This April 2011 issue of the U.S. Military Academy's Combating Terrorism Center (CTC) Sentinel features the following articles "Saudi Arabia Moves to Maintain Regime Stability" by Toby Craig Jones; "Ayman al-Zawahiri's Reaction to Revolution in the Middle East" by Nelly Lahoud; "How the Arab Spring Could Embolden Extremists" by Philip Mudd; "Are Islamist Extremists Fighting Among Libya's Rebels?" by Alison Pargeter; "Bahrain: Crushing a Challenge to the Royal Family" by Caryle Murphy; "JI Operative Umar Patek Arrested in Pakistan" by Zachary Abuza; "The Implications of Colonel Imam's Murder in Pakistan" by Rahimullah Yusufzai. The issue concludes with highlights of recent terrorist activity.
Combating Terrorism Center at West Point: http://www.ctc.usma.edu/sentinel/
CTC Sentinel (April 2011), v.4 no.4