Sheriff Lott's New Toy

The Richland County, South Carolina Sheriff's Department (that's them above) just obtained an armored personnel carrier, complete with a belt-fed, .50-cal turreted machine gun.  Sheriff Leon Lott has charmingly named the vehicle "The Peacemaker," and insists that using a caliber of ammunition that even the U.S. military is reluctant to use against human targets (it's generally reserved for use against armored vehicles) will "save lives."

Can we call this overkill, yet?  Is there any weapon people like Sheriff Lott would consider inappropriate for use against American citizens?

Like most of these military toys obtained by local police departments, the Peacemaker will inevitably be used on drug and gambling raids—that is, to enforce laws against consensual activities.  Or, as we're now seeing in Minnesota, perhaps on raids against leftist political activists. 

Can't be too careful, you know.