In my story, there is a large group of humanoid clones that help the city function, doing mundane tasks such as cleaning and maintaining the city. Doing all of the minimum wage jobs and 95% of the manual labor. This is almost like a single utopian city(the only one) in the world where costs are cheap due to the abundance of clones doing everything. Other countries are jealous and want to steal/sabotage this city.
I'm looking for ways that this can fail, in order to draw up some counter-measurements that can destroy the status quo in this futuristic city in a heartbeat. I need some ideas, because I think such a system is pretty destruction-proof.
Right now I have the idea of EMP usage on individual clones/or hunting them down one by one, but this would not damage the infrastructure, and therefore would not be a cause for concern in this world. Clones can be created with a click of a button.
Just think of how wasps and ants can build such a complex base that far exceeds the cognitive capabilities of one ant/wasp. How can this system malfunction?
Constraint: -The swarm intelligence is strong due to the ability to create clones purely mechanically and chemically(relies only on monetary costs and chemicals that can be synthesized)