The fall of the Berlin Wall.
B. a primarily psychological problem
Uhhhhh.... 960 cubic inches... (this is satire, don’t listen to me.)
The Alien and Sedition Acts were unconstitutional as it limited free speech, which is guaranteed in the first Amendment. If the individual states chose to nullify the acts, that would be a sign of rebellion. I do not think that the US should institute forms of the Alien and Sedition Act. It's America. The people here should be free to say what they want to say.
Perishable items are produced in the second ring of the von thunen model.