The real fallacy here is the idea that the government is 100% responsible for "keeping us safe". In reality, it's me that keeps me safe most of the time. I expect them to deal with larger threats, such as North Korea. I expect all of us to deal with smaller threats, and understand shit happens sometimes that we wish hadn't.
[1] http://www.snopes.com/toddlers-killed-americans-terrorists/
There are a LOT of decent arguments people in the US use to keep guns in the hands of their citizens. The most compelling one for me is that if you want to take my guns then lets have a plan in place to severely reduce the number of guns police have. That resonates with me on a personal level but I'm not expecting the police to give up all guns until results are shown on both sides. I can only think of Swatting in the USA. If I can prank call the police and they swat my neighbors house how can we say that citizens are the only problem here. http://time.com/2916554/aclu-police-militarized-report-swat-...
I use swat teams as an example of the paramilitarization of police that bothers me and is another side of the gun problem in the USA. If they broken into houses with battons and stun guns this would be bad but a different story.
Blueprints, maybe, but conscripting company employees would certainly fall under the prohibition that it can't be "unreasonably burdensome".
Suppose you assemble/configure/sell gaming PCs, one of your customers is arrested, and the local police department is understaffed and technologically illiterate... Can the local deputy show up at your front door and force you to teach them how to find the recycle bin?
https://www.technologyreview.com/s/601044/the-feds-are-wrong...
And another one - So this is the 4th amendment, right?
"The right of the people to be secure in their persons, houses, papers, and effects,[a] against unreasonable searches and seizures, shall not be violated, and no Warrants shall issue, but upon probable cause, supported by Oath or affirmation, and particularly describing the place to be searched, and the persons or things to be seized."
Okay - Where does it say in there that whoever is served the warrant must also ensure that the government makes sense of it? It only says that upon probable cause, it allows the government to search a place and "seize stuff". But that's it.
The government can obtain the iPhones and can even obtain the encrypted data. What they do with them from there on, it's their business.
Of course, if I may play devil's advocate: A criminal using a shredder has to go additional lengths of shredding the paper, but encryption is just always-on.
It's as if you had a shredder which magically shreds all your incriminating evidence you leave on paper.
(Not that its relevant, but I support Apple in this fight.)