They're afraid of the citizens they're supposed to (collectively) protect?
You mean, the police don't prevent crime?
And why should the PD have better protection than, say, the library (all those unarmed, defenseless children, you know)?
It's sad that this happened, and sad that nobody could stop him before he injured those officers.
But once again, this is a criminal we're talking about.
Why make life harder for citizens just because of him?