Jakarta's great climate wall

More than 20 miles of gigantic wall, out in the ocean, are defending Southeast Asia's biggest mega-city from rising seawater. That's the idea anyway. Jakarta and its 30 million people are sinking, while climate change is causing ocean levels to rise. Indonesian officials have hired experts from the Netherlands, with their dyke-building expertise, to make the massive sea wall a reality. But the project has some serious downsides. Patrick Winn reports from Jakarta.