Thousands of high school seniors in Baton Rouge, Louisiana believed they were taking a field trip to a “College & Career Fair,” but they were actually transported to a massive church service called “Day of Hope.”

All the warning signs were there but because the students and their families trusted school administrators, or at least figured they could get free food and a day out of class, they ended up wasting their time listening to Christian propaganda instead of learning more about their futures.

It wasn’t just unethical. It was illegal. ...