Which Supreme Court case reversed the earlier decision of Plessy v. Ferguson?

What challenges has the United States faced with the Operation Iraqi Freedom? How do these challenges compare to past challenges that the United States has faced in other military conflicts?

What will be an ideal response?

As nations have developed their governments, most of them have passed through four basic stages of government. Of the following, all are part of the first stage of basic functions EXCEPT ______.

a. revenue collection, expenditures, and debt management b. maintenance of internal law and order c. human welfare responsibilities d. defense