Protesters

Why Are Protesters Allowed to Block Minnesota Traffic for Hours?
Why Are Protesters Allowed to Block Minnesota Traffic for Hours?
Why Are Protesters Allowed to Block Minnesota Traffic for Hours?
Another day in Minnesota, another interstate blocked for hours by protesters. Yesterday it was I-35W in Minneapolis during morning rush hour. Saturday night it was I-94 in St. Paul. In both instances traffic was blocked for hours before law enforcement finally cleared them out. Why so long? What's up with that?