The Newtown Shooter got in by BREAKING THROUGH ITS WINDOWS, according to this news account.
Glass is a 5,000 year old technology that hasn't changed in 5,000 years - it's still as fragile and easily broken as it was five millennia ago. A man with a gun, or a brick, can easily break through it.
Until security film like Armor Glass sells came along. It was first developed as a result of space technology to protect people from car bomb blast waves in Northern Ireland when the IRA was killing people for not being Catholic. Remember that? It was installed in our federal buildings in DC after 9/11 for the same reason.
A bullet into tempered glass blows out the entire area -- tempered glass like that in an office or school breaks into small pieces, like a car window.
Any gun -- especially an assault style Bushmaster 223 caliber gun -- would have blown a huge hole in the school’s – any school’s -- glass wall in mere seconds.
Within two seconds this killer was into the school building after shooting out the glass.
The second the glass shattered the staff and students were totally vulnerable. Many buildings have glass for walls. All are just as vulnerable to burglars, bricks, hurricane-force winds, hail -- and shooters with assault weapons.
It seems that we have come to the unfortunate time that EVERY building should armor its glass to protect our families and our schools to protect our kids from demented young men with high powered rifles. As well as windborne debris from a hotter planet generating bigger storms.
But most importantly, from killers and burglars.
We have come to a point in America that we all need security to protect our kids and families.