Unlike Britain, France, and Russia, the United States has never faced a full on war on its own soil (although some include the War of 1812 in this category)--due mostly to the fact that the US has been so well protected by the Atlantic and Pacific oceans.
Emphasis made of finding cost effective ways to reduce air polution
federalism decentralizes politics and policy-making by devolving powers from the federal or central government down to governors at the state level. This helps to ensure that the policies that are implemented are debated and formulated subject to input from the two levels
That would be something called a decision-making grid.
The decision-making greed is a useful tool for making the best decisions especially in the financial matters. It can help you visually see what are the best options and the pros and cons of those options. For example, the decision making grid could help you see which choice would you choose on the basis of its cost.
