KATHERINE ZIMMERMAN, TERRORISM EXPERT, AMERICAN ENTERPRISE INSTITUTE On this edition of the program, host Carol Castiel and Henok Fente, reporter with VOA’s Horn of Africa Service, talk with Katherine Zimmerman, Senior Fellow at the American Enterprise Institute, about the merits and drawbacks of President Barack Obama’s counterterrorism strategy as it relates to combatting al-Qaida affiliates and extremist groups from Iraq and Syria to Nigeria, Mali, Yemen and Somalia.