Google and Microsoft will follow Apple in adding anti-theft “kill switch” to their smartphone operating systems. U.S. law enforcement officials will announce the commitment on Thursday. New data shows a dramatic drop in theft of Apple iPhones and iPads after the introduction of iOS 7. In New York, iPhone theft was down 19 percent in the first five months of this year. In San Francisco, robberies of iPhones were 38 percent lower in the six months after the iOS 7 introduction. In London thefts of Samsung devices rose by over 40 percent.”]