A mass of unusual sorts takes place in a church in Pennsylvania, where dozens of revelers come to pray armed with semi-automatic weapons. To show their willingness to defend their family and their religion, the World Peace and Unification Sanctuary church invited participants to attend a mass wedding with AR-15 rifles, locked and unloaded. Followers were said to have come from around the world for the ceremony, which prompted a local school to relocate students to a different campus. The event also falls on the same day that students returned to the high school in Parkland, Florida where a 19-year-old used an AR-15 to kill 17 people exactly two weeks ago.