Cardinal Cupich's declaration might be 'sadly amusing' to people who don't really THINK about what they are saying as prayers in church ['peace to people of good will'] OR what Christianity DEMANDS of a disciple of Jesus---they're not to be gun-slingers..  There IS NO PLACE for guns in church.  The people there are members of YOUR immediate Christian family--your parish.  If 'baddies' did come into the church building, drawing out a gun could get innocent people killed before the perpetrator[s] was shot.  

Secondly, if one is going to carry a gun---they had better have EXTENSIVE training in how to use it properly.  Most gun carriers don't have that much training here.  Best to leave the gun at home and save it for defending the 'ole homestead, pardner'.