Justia columnist and Cornell law professor Sherry Colb comments on the Supreme Court's recent, 5-4 decision in J.D.B. v. North Carolina. There, the Court held that when police interrogate a suspect under the age of eighteen, the suspect’s youth bears on the question whether he was in “custody” at the time-- and was therefore entitled to hear the Miranda warnings before questioning began. Colb discusses the role of custody and interrogation in Miranda's protections, and explains the arguments that the majority and dissenting Justices marshaled to justify their respective positions. In addition, she contends that the dissenters in the case -- four conservative Justices -- essentially opined as they did due to a fundamental dislike for Miranda itself, rather than due to the wish that they cited for greater certainty and clarity in Miranda's application.