The New York Times:

Law enforcement agencies have a legitimate need for evidence, which is all the more pressing in terrorism cases. But the Constitution and the nation’s laws limit how investigators and prosecutors can collect evidence. In a 1977 case involving the New York Telephone Company, the Supreme Court said the government could not compel a third party that is not involved in a crime to assist law enforcement if doing so would place “unreasonable burdens” on it. Judge Pym’s order requiring Apple to create software to subvert the security features of an iPhone places just such a burden on the company.

Interesting opinion piece by the Times. This story has a long way to go before it gets resolved and everyone is lining up and taking sides.