As an example, before getting involved we were starting to have trouble with trespassers at the pools and "gang-like" activity. Once we got into office we got high fences with keyed locks installed at all the pools and tennis courts, and hired a security service to patrol the property.
Now that I think of it, I bet this would work at the national level as well. The secret is to GET INVOLVED.
Civic Council for starters, and School boards.