I can understand infiltrating a demonstration. If you want to control the situation it has a certain logic to it. What I don't understand is why those infiltrators were ordered to throw stones. I can't see how anything good would come from that, unless of course you want to make the demonstration turn violent. All it does is escalate the situation, why would a responsible commander ever want that to happen?
Poland's central bank head calls story of Nazi train find a hoax (Reuters)