Milwaukee Sheriff David Clarke says Al Sharpton, President Obama and Attorney General Eric Holder "owe" Darren Wilson.
Darren Wilson is not expected to be charged with violating Michael Brown's civil rights.
The attorney general says the data would protect both police and civil liberties.
More than 40 world leaders participated in the anti-terror march.
Some high-profile deaths have prompted the community to act. (12/23/2014)
Federal prosecutors are seeking to speed the pace of reforms at the New York City jail complex.