Two things.
One reason houses of worship are targets for mass murder is that the entire congregation is facing the religious leader and no one is watching the front door. Most HOW shooters walk in through the front door. Have folks watch the front door and be armed and this hateful action might cease.
Second thing.... I find it ironic that a lot of posters on this thread are liberals and others have a poor opinion of America yet every one of us clicked on this clickbait piece to watch the video because the title of the piece indicates so.
Click here to see the New Zealand livestream mass-murder vid! This is the internet Facebook, YouTube, Twitter built!
Go figure, you hypocrites.