As Bill Maher so eloquently put it: "Its horrible, but this time, let's not overreact, wallow, erect monuments to terrorism; let's handle it Israeli-Munich style"
Source: https://twitter.com/billmaher/status/323951293506924544
By assassinating (and abusing due process) those responsible rather than adressing the issues which continue to allow this circle of violence and retaliatory action to continue ad nauseum.
I know you haven't said this, but due process hasn't been followed in prior years - gitmo prisoners still languish in limbo.