Race relations in the United States disheartening

Three police officers were killed, several others injured on Sunday in a shooting incident in Baton Rouge, the capital city of the US state of Louisiana. It is a second shocking case after the shooting deaths of five police officers in Dallas and the police killings of black men in Louisiana and Minnesota.

The recent horrific race-related incidents in the United States have brought into sharp focus how little has been achieved in socio-racial relation in the country. In many ways, baseball great Yogi Berra nailed it when he said, it's a case of "deja vu all over again".

Since its founding, the US has wrestled with racism, and the events of recent days and the many outrages of recent years show this struggle is far from being over.