CNN Radio News Day: March 26, 2013 by CNN published on 2013/03/26 20:48:19 +0000 (CNN) – Welcome to CNN Radio News Day. Today in Washington D.C., the U.S. Supreme Court began hearing arguments on the controversial issue of same-sex marriage. Justices are in two days of hearings on cases that have potential to fundamentally change how American law treats marriage. First up, the focus on California's same-sex ban - Proposition 8. CNN Senior Legal Analyst Jeffrey Toobin watched today's arguments: "This was a deeply divided Supreme Court, and a court that seemed almost to be groping for an answer here." Once again, North Korea is stepping-up threatening rhetoric. Pyongyang says it's arming for possible strikes on U.S. bases in the Pacific. The North Korean military says it's also eyeing potential targets in South Korea. Just how seriously should the U.S. and the world take these latest threats? Victor Cha, director of Asian Studies at Georgetown University, says nothing right now is clear: "We had some sense of how Kim Jong Il, the former leader, operated, but there's a lot we don't know about the current leader. And his actions have really been ranging far beyond what we've seen in the past with North Korea." South Africa's finance minister announced today that five of the world's emerging economies are going to form their own international development bank. It came out of the BRICS summit, which brings together leaders from Brazil, Russia, India, China and South Africa. They're meeting for the fifth-straight year - this year in Durban, South Africa. Because BRICS accounts for 40% of the world's population, CNN's Robyn Curnow, covering the summit, says today's news is a big deal: "They're saying 'let's create our own fund...our own pool of money to help us develop our own infrastructure projects for example'. That's why there is this push for a BRICS development bank."