Question: A Ring Tone Adults Can’t Hear

Issue: Teens evade rules with a ring tone adults can’t hear/New York Times

More Info: In that old battle of the wills between young people and their keepers, the young have found a new weapon that could change the balance of power on the cell phone front: a ring tone that many adults cannot hear. In settings where cell phone use is forbidden — in class, for example — it is perfect for signaling the arrival of a text message without being detected by an elder of the species.

Question: Is this significant?