The U.S. needs the technologies and the explicit and implicit fabric of rules that Europe uses to govern people in crowded areas (hint: it works! go on a visit).

Individualism doesn't work anymore in the U.S. - not in litigation, healthcare, transportation, crime, city planning etc. The U.S. needs to become more European.

My two cents.

I'll decipher this: if the U.S. would have effective city planning, crime prevention and a social welfare system, there'd be less bad neighborhoods to worry about and in result less crime. Further, if employers would actually hire people for longer periods of time then longer standing communities of people could form where several generations would know what's going on in the neighborhood. Further, if you would add good public transportation and kids who know how to ride on a bicycle, you would finally have European conditions => kids could go to school on their own.