Investigations into both President Joe Biden and former President Donald Trump are heating up. There's some relief from the heat in parts of the US that have been sweltering. Work continues to bring an American nurse and her child home after they were kidnapped in Haiti. An American woman has been charged with conspiring to kill her husband in the Bahamas. Plus, we'll tell you why a zoo in China is having to reassure visitors that its sun bears, are in fact bears.To learn more about how CNN protects listener privacy, visit cnn.com/privacy