Apple says the FBI is making access demands even China hasn't asked for

The tech company claims San Bernardino government workers botched an attempt to access gunman Syed Farook's iCloud account and reset his password

The US government is asking for greater access to Apple's software than even the Chinese government, an Apple executive has said, as the company resists an order forcing it to help the government crack the passcode for a phone that was used by a San Bernardino shooter.

America's most valuable company and its government used increasingly bellicose tones on Friday in a debate over whether national security can dictate how Silicon Valley makes products.