An agent equipped with nothing can cause a lot of trouble simply by taking advantage of what's locally avaiable.

You'd either need to unironically turn it into surveillance state to protect the locals or you stick with the current arrangement, they don't have a choice. One idiot infiltrating and jerry rigging something to destroy the lives of children is all it would take to spark a disaster. The only logical option is to get someone tracking all the tourists in designated areas.

Theoretically if CRINK unites I suppose they could just obliterate the Empire, but nobody wants to initiate that because it could destroy everything. A lot of people forget we're dealing with ideological twin of Nazi Germany, but instead of building chambers they would absolutely be willing to vaporize all your people in a nuclear blast. Because it means nothing to them, it's just a plot of lands to build real-estate on.