They built it to prevent that. The Feds are asking for Apple to write a new version of the OS that can bypass the protection. Apple is under no legal obligation to do that and should never be forced to do that.
“Apple is under no legal obligation to do that and should never be forced to do that.”
No legal obligation??
What about a moral obligation to protect innocent American lives? Not everyone is like you, who would rather be killed by a terrorist than have Apple try to save lives.