Their aim is apparently not to hold the town but to provoke Ethiopia into sending its troops back into Somalia, which could spur nationwide resentment towards the old enemy and more support for the radicals fighting against it.
House prices, though starting to fall, remain high enough to drive away many old residents of San Francisco and to feed resentment in poorer neighbourhoods.
If unchecked it breeds a resentment that could express itself in the privacy of the ballot booth with a vote for the grumpy old maverick who looks as if he would be happy to down vodka shots with you, even if his doctors did not allow it.