Not shoot them if rocks are being thrown. But if they are shooting at them with firearms? Absolutely. Would be nice if they had those huge high pressured water trucks I saw the Germans use once on protestors. And tear gas is always a option. But not if children are in danger of being hit. They will be there mainly as support for the authorities. So I am not expecting anything bad to happen, except blow-back from the liberals over them being confined to containment tent camps for processing.