Not all headaches represent migraines, and migraine is not the only condition that can cause severe and debilitating headaches. For example, cluster headaches are very severe headaches that affect one side of the head in a recurrent manner (occurring in a cluster over time).
The United States government is the largest issuer of debt securities, and its bonds are considered the safest fixed-income investments available to your customer.
The U.S. Treasury Department regularly borrows to finance the Federal Government's debt. The public debt of the United States doubled from $8.68 trillion in 2006 to $17.35 trillion in 2013. The Treasury Department sells these securities at auctions via TAAPS (Treasury Automated Auction Processing System).