Home foreclosures are up 19% since last October; that, combined with a sluggish housing market, has left many communities around the country studded with vacant homes. We're talking about what comes along with those empty houses: house parties, rodents and, for some, ongoing efforts to keep their neighborhood clean. We speak to Luther Bradley, block captain for the neighborhood watch group in the Sherwood Forest neighborhood in Detroit; John Tyus, member of the Downtown Brooklyn campaign for Families United for Racial and Economic Equality, and Karen Meinzen-McEnerny, councilwoman in Sandy Springs, Ga.