This is an important post about a change that has been made to NFPA 101-2018, regarding the allowable number of operations to unlatch a classroom door.
This presentation - WN@TL - School Safety in America: Rhetoric vs Reality - David Perrodin - is well worth a listen. It supports the concerns about classroom barricade devices and school security decision-making.
Why are the security measures in these two school districts so different? In your opinion, what are the most important physical security measures for schools to implement?