Ever ride around Anchorage and see all the parking lot signs that warn against overnight camping.  Violators will be towed.  The key to adhering to public policy is ENFORCEMENT.  Now define enforcement for cleaning up Town Square and rid the area of vagrancy.  Drive by the Walmart on A Street around 9:00 a.m.  You'll see at least a dozen able body men and women all crashed on the outer parameter of the store's parking lot with loose garbage strewn all over the grass and parking lot.  For many, vagrancy is a way of life.