Why Paris Hilton is celebrating closure of a 55-year-old Utah school

Provo Canyon School's Utah campus license was revoked due to health and safety violations.

Paris Hilton celebrated the closure, having endured abuse at the institution years ago.

The school's owners are considering legal options while the department monitors student transitions.

This action follows years of advocacy by Hilton and others against such facilities.

The troubled-teen industry faces increased scrutiny and regulatory efforts nationwide. ...