Global Warming and National Security

Nobody doubts that dealing with global warming will be expensive, so supporters of climate change legislation are raising questions of national security. Is that a diversionary tactic or will climate change increase terrorism, force mass migration and destabilize entire regions? Also, Palestinian leader Mahmoud Abbas threatens to retire. On Reporter's Notebook, we ask David Plough, the man credited with running a "perfect" campaign for Barak Obama, what happened on Tuesday?

Banner image: The Brooklyn Bridge is viewed from the shore at a park in the Brooklyn borough of New York City. A new report finds that rising sea levels due to global warming threatens some of the world's major cities. Photo: Spencer Platt/Getty Images