Until measures are taken to detect that gun, then no one can be blamed for a gun being hidden somehow by a student, and it being brought on campus without ex-ray vision detection going on.
I don't have that kind of detection built into my eyes, so my other thought is this -why don't these school's have detectors after all that has happened since Columbine etc ??? People can't believe that the children are under attack like this, but then see that there is nothing done about it, and so we keep having these event's over and over again ??
Maybe the far left Democrat's (if the shoe fits wear it), look at it as a crisis that will warrant getting the guns from the good citizen's who might not go along with what the crats have waiting for them in the future ??? It's a valuable thought looking at the picture that has been painted lately, so what better place to gain the cringe worthiness of the citizen's, by not doing anything to help stop the destruction, otherwise if a bigger agenda is involved ?? Think about it folks. Connecting the dots has got to be in order, otherwise we aren't a dumb people, and it's time to wake up.