The latest filing in the legal war between the planet’s most powerful government and its most valuable company gave one indication of how the high-stakes confrontation could escalate even further.
In what observers of the case called a carefully calibrated threat, the U.S. Justice Department last week suggested that it would be willing to demand that Apple turn over the “source code” that underlies its products as well as the so-called “signing key” that validates software as coming from Apple.