Donald Trump said Thursday he might push for Americans accused of terrorism to be tried in military tribunals at the U.S. Navy base in Guantánamo Bay, Cuba.

Under current federal law, it’s illegal to try U.S. citizens in military courts. But in a brief but wide-ranging interview with the Miami Herald Trump said that “I would say they could be tried there, that would be fine.”

He criticized President Obama for “allowing people to get out that are terrible people.”

Trump told the Herald he would prefer using military commissions rather than the civilian judicial system to consider terrorist cases, including those involving U.S. citizens.

“Well, I know that they want to try them in our regular court systems, and I don’t like that at all. I don’t like that at all,” he said. “I would say they could be tried there (Guantanamo), that would be fine.”

The Obama administration initially considered trying five alleged conspirators in the World Trade Center attacks on Sept. 11, 2001, in federal court in New York City, rather than in Guantánamo where they are being held. But the proposal ran into a firestorm of opposition leading the administration to opt for prosecution by military tribunal.

During Thursday’s meeting with The Herald, Trump also expressed continued skepticism about climate change.

“I’m not a big believer in man-made climate change,” Trump said during the interview in Miami Beach, which has spent millions of dollars to deal with rising sea levels. “There could be some impact, but I don’t believe it’s a devastating impact.”

The greater concern, he said, is that U.S. climate policy puts constraints on the economy. “The problem we have is our businesses are suffering. Our businesses are unable to compete in this country because other countries aren’t being forced to do what our businesses are being forced to do, and it makes us uncompetitive.”