Using stolen vehicles to gain entry, gangs quickly run inside and scoop up as many items and as they can in 90 seconds or so -- they know that the police will respond quickly and they have limited time to escape. The story says that the goods are then sold overseas or online -- this is clearly a time for "Buyer Beware" awareness of brand new merchandise coming from an unknown source.
Here is a link to the story: NBC News 27 November, 2014
My hunch -- the stores that are getting hit are relying on roll up metal doors or simple window grates which cannot stand up to the impact from these vehicles. I also suspect that better protected stores are not getting hit because there are so many "soft targets" just down the street.
Simple lesson -- you never want to be the soft target that gangs want to settle for. With a little common sense and help from an expert, simple and affordable measures can be taken that will cause these gangs to pass by on their way to easier pickings.