It was harder to find jobs and less survival resources when moving to the coast. As America industrialized, the people started to migrate more towards the west especially when railroads were beginning to attach.
Britain had to cross the Atlantic Ocean to get to the Colonies
The purpose of the American Colonization Society was founded in 1816 to assist free black slaves in emigrating back to Africa.
the responsibility of the DHS would be to identify when and where the attack occurred, and they also have the job to hunt down the person who planned and committed the attack