New framework embraces uncertainty to make sense of history

There are many things we don't know about how history unfolds. The process might be impersonal, even inevitable, as some social scientists have suggested; human societies might be doomed to decline. Or, individual actions ...

Police pullback linked to increases in crime

When police pull back, crime accelerates. But policing alone is no cure-all. That's the takeaway from a new Denver-area study co-authored by researchers at CU Boulder and collaborators in Nebraska, Michigan, and South Carolina.