original_query: What did the task force recommend for detainees who were considered too dangerous to release but lacked sufficient evidence for prosecution?
query: What did the Guantánamo Review Task Force recommend for detainees who were considered too dangerous to release but lacked sufficient evidence for prosecution?
answer: The Guantánamo Review Task Force recommended that those detainees deemed too dangerous to release, but without sufficient evidence for prosecution, receive a Periodic Review Board hearing.