where is the question that you are confuse
The argument that Carnegie makes about the uses to to which the great fortunes of industrialists should be devoted is that he argued that the wealthy must live modestly and make use of their fortunes for the elevation of all civilization.
The most likely effect of the scarcity of potato crops in this region is that demand has dropped, since people are looking to other crops to satisfy their needs.
I'm not sure if this is what you're looking for but the 4th amendment states that police or other federal agencies can't search or take your property without a warrent provided by a judge.