Affirmative action has a negative effect on our society when it means counting us like so many beans and dividing us into separate piles.
If we intend to provide a better life, and a better world, for future generations, we can't ignore the quality of the environment we leave them.
When we give a subsidy, the benefits to the public ought to exceed the benefits to the company. When it doesn't, that's our definition of corporate welfare.
A great power has to have the discipline not only to go when necessary but to know when not to go. Getting involved in ethnic, religious civil wars is a recipe for disaster.