Alva Review-Courier -

WASHINGTON (AP) — Visitors attending Supreme Court arguments surrender their electronics on entering the courtroom. So if something rings, chimes or buzzes, it's likely the device's owner is dressed in a black robe.

Last year, a justice's cellphone went off. But last month, when four electronic pings sounded during an argument, the device was different. It belonged to Justice Sonia Sotomayor and was alerting the justice, who is diabetic, that her blood sugar was urgently low.

The 63-year-old justice has had diabetes since childhood, but the sound was the first public notice that she was using...