Well I've spent a lot of time in SFO during my working life and its an amazing place. Like any city, it does have its problems and one of them, as I've mentioned here, before is the influx of druggies on the city.
There's a very good reason for this, the city council is mostly made up of socialists and left wingers who pander to these losers. A while back one town in Texas paid for all its drug addicts to get on trains to San Francisco where the local council will support them.
