A dashcam video of downtown Los Angeles on Christmas day reveals a stunning sight. Hundreds of tents and lean-to's on the sidewalks that serve as shelter for the homeless. The scene is reminiscent of a third world country. ***SNIP***Cities are rapidly becoming the domain of the very rich and the very poor. Even those people working at decent jobs can't afford to live in the city they are employed. Rent control, stupid zoning policies, corruption, and fierce opposition to building any kind of housing has driven the working and middle classes out of urban areas. Along with them has gone...