Alex Hern at The Guardian:
If Apple doesn’t comply with the court order requiring it to weaken the security on the San Bernardino shooter’s iPhone, it may be asked to hand over the source code to the entire operating system instead, the Department of Justice has implied.
In its formal legal rebuttal to Apple, the department addressed one of Apple’s key legal arguments: that forcing it to write the code, which would remove key security features from Syed Farook’s iPhone would be unduly burdensome.
The department wrote in a footnote to its filing: “The FBI cannot itself modify the software on Farook’s iPhone without access to the source code and Apple’s private electronic signature.
“The government did not seek to compel Apple to turn those over because it believed such a request would be less palatable to Apple. If Apple would prefer that course, however, that may provide an alternative that requires less labour by Apple programmers.”
⟶ via Reddit: "Print each letter of the source code on one A0 sheet, pile the sheets, then leave the 120 ton pile of paper in front of Apple HQ for the FBI to pick up." Then release iOS10.