Apple said Wednesday night that it is making it impossible for the company to turn over data from most iPhones or iPads to police — even when they have a search warrant — taking a hard new line as tech companies attempt to blunt allegations that they have too readily participated in government efforts to collect user information. The move, announced with the publication of a new privacy policy tied to the release of Apple’s latest mobile operating system, iOS 8, amounts to an engineering solution to a legal quandary: Rather than comply with binding court orders, Apple has reworked...