It’s way more complicated than the pundits are saying. To be fully informed read these articles.

From the EFF:

…the FBI’s demands reflect a familiar pattern of security agencies leveraging the most seemingly compelling situations—usually the aftermath of terror attacks—to create powers that are later used more widely and eventually abused. The government programs monitoring the telephone system and Internet, for example, were created in the wake of the 9/11 attacks. Those programs came to undermine the rights of billions of people, doing more damage to our security than the tragic events that prompted their creation.

ArsTechnica discusses Fifth Amendment issues:

But the Fifth Amendment goes beyond the well-known right against compelled self-incrimination. The relevant part for the Apple analysis is: “nor be deprived of life, liberty, or property, without due process of law; nor shall private property be taken for public use, without just compensation.”

The idea here is that the government is conscripting Apple to build something that it doesn’t want to do. That allegedly is a breach of its “substantive due process.” The government is “conscripting a company’s employees to become agents for the government,” as one source familiar with Apple’s legal strategy told Ars. The doctrine of substantive due process, according to Cornell University School of Law, holds “that the 5th and 14th Amendments require all governmental intrusions into fundamental rights and liberties be fair and reasonable and in furtherance of a legitimate governmental interest.”

Reason discusses the political battle over encryption:

This incident is only the latest conflict in a years-long encryption and security war waging between privacy- and security-minded groups and the law enforcement community. As more communications are digitized, authorities have been calling for industry assistance to build so-called government “backdoors” into secure technologies by hook or by crook.

Those in law enforcement fear a scenario where critical evidence in a terrorism or criminal case is beyond the reach of law enforcement because it is protected by strong encryption techniques that conceal data from anyone but the intended recipient. Hence, leaders at agencies like the Department of Justice, the Department of Homeland Security, and the National Security Agency, along with President Obama, have weighed in against strong encryption.