Springfield School Superintendent Dan Warwick says there are no words to describe the unspeakable Texas shooting yesterday.
But Warwick says the school system has invested millions of dollars to upgrade security at all schools and internal and state safety experts continuously re-evaluate the protocols.
Warwick says some of the safety measures are noticeable, many others are not.
And he tells parents that they system will remain "hyper vigilant" when it comes to safety.