The shooting death of an unarmed black teenager in Missouri has unveiled deep-seated racial tensions in the US, and pressure is mounting on President Obama. Next, in northern Mexico, some 20,000 people are still without clean drinking water after a river is contaminated by pollution from a mine. And one of the most beloved theme parks in America is being deserted by its customers. Seaworld is suffering from a documentary that shows the reportedly awful conditions of killer whales in captivity.
