The Answer is Rocky Mountains
The putting out system was a precursor to the factories of the industrial revolution. It was an intermediate step that came between the system in which everything was made at home and the system in which everything was made in factories.
The Minie Ball was a type of muzzle-loading spin-stabilized rifled musket
The United States did not complain as there were at the time fears of a war between U.S. and the Soviets. John F.Kennedy is quoted as having said:"A wall is much better than a war".