Intense wildfires burn in Siberia

Wildfires in Siberia are burning intensely and carbon emissions are near an all-time high from Russian fires. We look at what's causing the blazes and how they compare to fires raging across North America. Also, a Myanmar swimmer has surrendered his Olympic dreams and a shot at his nation's first Olympic medal, all to protest the country's military. And, Cubans and Haitians have emigrated to the US on a large scale for decades. With recent unrest in those two nations, we take a look at immigration policies toward them.