Germany said on Wednesday it would review the cases of nearly 550 asylum seekers who have been deemed a security risk, spurred by new questions about the handling of a Tunisian migrant who killed 12 people last month at a Berlin Christmas market. Interior Minister Thomas de Maiziere told lawmakers the country’s Joint Terrorism Task Force would look carefully at each of the 547 people identified as a security risk to determine if they needed to be deported or taken into custody.