Thousands of people are being notified that they must be tested for HIV and other dangerous diseases because they trusted their dentist. A new and provocative move by North Korea is creating more uncertainty about the country’s young and mysterious leader. A new debate is raging over the price of cleaner air, after the Obama administration announced it will go forward with a plan to cut pollution from cars. And, ABC’s Martha Raddatz with the general who will guide America’s exit from Afghanistan. This and more on the World News Podcast.