Soeren Kern is a Senior Fellow at the New York-based Gatestone Institute. He is also Senior Fellow for European Politics at the Madrid-based Grupo de Estudios Estratégicos / Strategic Studies Group. Follow him on Facebook and on Twitter .
As details emerge of the August 17 jihadist attack in Barcelona, the evidence points to one overarching conclusion: the carnage could have been prevented if a series of red flags had not been either missed or ignored.
The ongoing purge of people loyal to U.S. President Donald J. Trump at the National Security Council, the main organization used by the president to develop a national security policy, is part of a power struggle over the future direction of American foreign policy.