Body Cameras on Police Officers - Now Required?

With the recent wake of protests in Ferguson, along with recent callouts on police brutality, Obama responded by suggesting new standards on police uniforms, the main part being adding funding (to the tune of $273 million) to get body cameras on 50000 police officers across the nation.
This would provide video evidence in cases of police brutality, such as those of Michael Brown or Kajieme Powell. In cases like these, police and witness statements are often disputed; by having these cameras on an official there, it would definitely clear up misconceptions or confusion.

While this is a great idea, it won't help combat police brutality, especially in cases where racial profiling is involved. For example, in the case of Kajieme Powell, he was fatally shot by police in a St. Louis street, where a witness had recorded the entire altercation. Even though there was video evidence that the police used excessive force, the video wasn't considered in the case.

Perhaps having the cameras on police officers, without the ability to remove or turn them off would help more than a witness recording an altercation on their phone. Maybe not. We'd just have to wait and find out.