As we’ve learned from national hero Edward Snowden and, well, almost every other high-profile action taken by law enforcement recently, this most likely has very little to do with the specific crime or iPhone that the FBI is citing in this case.
It’s their excuse to establish precedent and permanent backdoors for themselves so they can illegally spy on anyone’s data whenever they please.
This is the most dangerous kind of slippery slope in today’s world: one that starts under the guise of security in the face of terrorism.