Teen wearing Jesus T-shirt banned and suspended from school

Teens can wear T-Shirts to school saying: "Hail Satan" but the principal of one school in Nova Scotia, Canada bans a teen from wearing a T-shirt with "Life is wasted without Jesus"?!!! (plus a 5-day suspension) Wear is our society going? Is this T-shirt offensive?  I don't see how?  Christians have been wearing T-shirts and …