Since 2008, he has represented several detainees in habeas corpus litigation in federal court and in resettlement efforts. Beyond his Guantánamo work, Omar focuses on litigation and advocacy in response to abusive counterterrorism practices, including the unlawful surveillance of Muslim American communities. Prior to coming to the Center for Constitutional Rights, he was in private practice, working mostly in the area of international commercial arbitration. Omar has been interviewed on major news outlets, including MSNBC, Al Jazeera, Russia TV and Channel 4 News (UK). His opinion pieces have appeared in The Huffington Post and The Global Journal among others. He is a graduate of Georgetown University Law Center.