An open letter from Tim Cook:

The implications of the government’s demands are chilling. If the government can use the All Writs Act to make it easier to unlock your iPhone, it would have the power to reach into anyone’s device to capture their data. The government could extend this breach of privacy and demand that Apple build surveillance software to intercept your messages, access your health records or financial data, track your location, or even access your phone’s microphone or camera without your knowledge.

In response to a court order related to the FBI's investigation into the San Bernardino terrorist shooting:

The ruling requires Apple to provide the FBI with technology to bypass a feature that would automatically erase the data on the phone after 10 incorrect attempts at entering a password. That would theoretically allow the government to crack the device through brute force.

Would be great to hear the Presidential candidates comment on this dilemma.