The technology company Apple and the FBI are having a big argument over the iPhone of a killer. In December 2015, 14 people were killed and 22 were seriously injured in a terrorist attack in California. The FBI has the iPhone of one of the terrorists and wants Apple to unlock it. The FBI thinks information in the phone can help to catch more terrorists. Apple has told the FBI that it will not open the iPhone. Apple said that would risk the security of its customers. Apple also said it would be dangerous because other people would want phones opened.
The Department of Justice (DOJ) is also angry that Apple will not open the iPhone. It said Apple is using technological barriers to stop the FBI from doing its job. It said Apple must help the FBI to find out about the killer. The DOJ added that: "Apple alone can remove those barriers so that the FBI can search the phone." Apple said the DOJ wanted to give Apple a bad name and make the public think that Apple was an evil company. It said: "It seems like disagreeing with the Department of Justice means you must be evil and anti-American." The DOJ said it wants just one iPhone unlocked.