"Whoever did this should be flogged..."
Yes. Flogged in the center of Gettysburg, then brought to Antietam and flogged again, then to Chancellorsville for another flogging and so on thru every battle site from that war....then hung!
I vote for marching them across an open field about 3/4ths of a mile across, up a gentle slope, while 5 or 6 hundred guys under a clump of trees at the far end of the field are pouring .50 caliber musket fire in their general direction, with a couple of cannons firing canister grapeshot just to add to the excitement.