Normally I give the police the benefit of the doubt, but the Columbine killings were obviously badly handled. The so-called SWAT-squad stood around outside for hours, too cowardly to go into the school and risk getting hurt, while a brave teacher bled to death. And it's also pretty clear that they shot one of the kids when he ran out.
I don't minimize the kind of guts it takes to go into a building where armed murderers are holed up. But with the lives of kids and others at stake, that's what a SWAT team's job is supposed to be. If they didn't want to do it, they shouldn't be drawing their salaries.
Please....MP5's. level 4 vests, tear gas and flasbangs, called "expert training"... They sat there for hours while people bled to death. What the F*** where they waiting for?