I hope that fear is mostly hyperbole, though, understandable to make the point for the letter, but she shouldn't be living with it for real.

To put this in perspective for everyone, there are something like 4 million students in 100,000 PUBLIC schools in this nation and goodness knows how many classrooms. In addition are all the students at 30,000 private schools.

According to the WaPo, approximately 193 schools have had a shooting on campus since Columbine in 1990. Most students in most schools didn't hear about it until afterward and were not in danger.

School shootings are extremely rare, and they are actually a very small part of the epidemic of gun violence. Just so she knows.