FACTBOX: Reaction to ruling on military prisoners

(Reuters) - The U.S. Supreme Court ruled on Thursday that Guantanamo Bay prisoners have the right to go before U.S. federal judges to challenge their years-long detention -- a stinging setback for the Bush administration.

Here is some reaction to the ruling:

U.S. PRESIDENT GEORGE W. BUSH

"We'll abide by the court's decision. That doesn't mean I have to agree with it.

"It's a deeply divided court, and I strongly agree with those who dissented, and their dissent was based upon their serious concerns about U.S. national security."

"We'll study this opinion, and we'll do so ... to determine whether or not additional legislation might be appropriate, so that we can safely say, or truly say to the American people: 'We're doing everything we can to protect you.'"

REPUBLICAN PRESIDENTIAL CANDIDATE JOHN MCCAIN

"I haven't had a chance to read the opinion yet. It obviously concerns me. These are unlawful combatants. They are not American citizens."

"But it is a decision the Supreme Court has made. Now we need to move forward."

"I always favored closing the Guantanamo Bay and I still think that we ought to do that."

DEMOCRATIC PRESIDENTIAL CANDIDATE BARACK OBAMA

"The court's decision is a rejection of the Bush administration's attempt to create a legal black hole at Guantanamo -- yet another failed policy supported by John McCain.

"This is an important step toward reestablishing our credibility as a nation committed to the rule of law, and rejecting a false choice between fighting terrorism and respecting habeas corpus."

"Bringing these detainees to justice is too important for us to rely on a flawed system that has failed to convict anyone of a terrorist act since the 9-11 attacks, and compromised our core values."

AMNESTY INTERNATIONAL'S U.S. DOMESTIC HUMAN RIGHTS PROGRAM

DIRECTOR DALIA HASHAD