The New York City Police Department says they'd like Apple to unlock every iPhone currently subject to a court-ordered search. Once the San Bernardino doors are broken down by the FBI, the NYPD has made clear: they want in, too. That'd mean every iPhone entered into evidence in a court case and subjected to a search ordered by a judge could be forced open by law enforcement, courtesy of a piece of software they've forced Apple to create. That software would be an entirely new version of iOS which the FBI (then the NYPD, and every other law enforcement agency in the USA) would then install on each iPhone, bypassing Apple's security measures, opening the locks to access data. You might be asking yourself, "why is that so bad?"