“The gap in our racially divided country has never been wider.”  
Are you serious?
Never wider?  You do know that black codes and Jim Crow prevented Afro Americans from voting and many other things, right?  You do understand that segregation had a major effect on the Afro American development after being freed from slavery?  Our nation has in fact been more racially divided than it is today.

“Are we reverting to the '60s when police officers were often seen as the enemy?”  
Really?
You reference the 1960s and then ask if the police will have targets on their backs.  Do you know what was happening to Afro Americans in the 1960s?  As a former police officer I stand amazed at some of the actions taken by officers in the 1960s.