Because in the south there was more segregation. Also there was more land that had been untouched in the north. The property was also cheaper because of that reason. And since it was untouched a lot of businesses came in to drill for oil and other natural resources, which created the need for workers.
Political: caused tension between British government and the colonies
Economic: Britain increased taxes on the colonies to pay off war debts
Social: Increased the rising American identity in the colonies, colonist would ignore the treaty to not invade west of the Appalation mountains
Answer: After the Tragic Days of September 11, 2001 the Government added new Security for there airports and the white house. Now its very hard to get any sort of weapon arbored a plane.
Boycotts followed by recalls.
Like when it came out a few months back that Gravy Train dog food had traces of a euthanasia drug in it. People boycotted the company, and the food was recalled.