[jonstewart]

But there is the essential difference — it is not the algorithm, whether performed manually or by machine, it is the testimony. A defendant need not testify against oneself. A computer cannot testify at all. The police can seize the computer and have a go at cracking it, it’s just a thing.

This one seems pretty cut and dry, frankly, since they’ve asked him to provide the code, and he refused. It sounds like the prosecution erred significantly in making closing arguments about pleading the fifth being indicative of guilty. The more interesting question, which is not involved in this case, is whether a defendant can be compelled to provide unlocked devices to law enforcement.