Apple says the government’s request violates the First and Fifth Amendments of the Constitution. The All Writs Act, under which the government made its request, does not apply in this case, Apple says. The case could go all the way to the Supreme Court, legal experts say. The two sides are due to appear in court March 22 for a hearing in the case, which could go to the U.S. Supreme Court. The FBI has said data on the iPhone could be essential to their ongoing terrorism investigation.”]