President Barack Obama and his family spent a warm and sunny afternoon at one of the most popular snorkeling spots on the island of Oahu, where they released four green sea turtles into the water. The Obamas arrived at Hanauma Bay on Tuesday after a scenic, 40-minute drive from their multimillion-dollar rented vacation home on Kailua Beach. During their two hours at the bay, the Obamas released four green sea turtles raised in captivity into the clear blue water. Hanauma Bay is a favorite destination for the Obamas during their annual Christmas trips to Hawaii. The first family always goes...