CNN International Diplomatic Editor Nic Robertson discusses the resurgence of ISIS following the New Year’s Day attack in New Orleans. He examines the implications of this event and how it reflects the broader landscape of terrorism. The resurgence raises concerns about security and the potential for increased violence, prompting a reevaluation of counterterrorism strategies. Robertson highlights the challenges facing authorities in preventing such incidents and the need for comprehensive measures to address the evolving threat posed by ISIS and similar extremist groups. The analysis underscores the importance of vigilance in combating terrorism in the current climate.