Appearing on Republican morning talk show "Fox & Friends" Monday, reality television host and real estate mogul Donald Trump called for whistleblower Edward Snowden to be murdered for leaking details about a massive spying program run by the National Security Agency.

"You know, spies in the old days used to be executed," Trump said. "This guy is becoming a hero in some circles. Now, I will say, with the passage of time, even people that were sort of liking him and were trying to go on his side are maybe dropping out... We have to get him back and we have to get him back fast. It could take months or it could take years, and that would be pathetic."

"This guy's a bad guy and, you know, there's still a thing called execution," he went on. "You really have to take a strong... You have thousands of people with access to material like this. We're not gong to have a country any longer."

"But the president is talking about global warming on Tuesday, he's not even addressing this!" co-host Brian Kilmeade exclaimed.

Trump seemed perturbed, saying that he does not think climate change is a problem. "You know, in the 1920s, magazine covers had a very scary phenomenon called global cooling," he said. "The planet was severely cooling and everyone was worried about global cooling. Now it's global warming. No, we have bigger problems. Believe me, we do."

"We do," co-host Steve Doocy added.

This video is from "Fox & Friends," aired Monday, June 24, 2013.