WASHINGTON (AP) – President Barack Obama says the U.S. hasn’t done a good job sorting out who should be released from the Guantanamo Bay detention center.

Obama saaid in a broadcast interview that some of the people released from the facility in Cuba have rejoined terrorist groups. He also said U.S. officials have not always been effective in determining which prisoners will be a danger once they are let go.

But he said the Bush administration’s policy of holding detainees for years on end with no trials is “unsustainable,’ and has only fueled anti-American sentiments.

In a taped interview with CBS’ “60 Minutes,” he also disputes former Vice President Dick Cheney’s claim that plans to close Guantanamo will make America less safe.

CBS released excerpts Saturday from the interview. The show will air Sunday evening.