So just how big a threat is climate change to our national security? Climate change got a lot of mentions last night during the Democrats' presidential candidate debate. Bernie Sanders said it was the biggest national security threat, and Martin O'Malley said climate change could act as a threat multiplier, making other problems facing the US even worse. Also, Denmark was in the debate spotlight, too — praised by one candidate for offering generous benefits to its citizens, dismissed by another as too small to be compared to the US. A Danish broadcasting news director tells us how that went down among Danes. Plus, the US releases its annual report on religious freedom around the globe.