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.
It now appears that a U.S. default was not as big a concern for U.S. creditors as markets originally feared. Foreign investors overall added $24.4 billion in U.S government-debt holdings. Below are the top 10 largest holders of U.S. debt at the end of October. 1. China, mainland: $1.305 trillion. 2. Japan: $1.174 trillion. 3. Caribbean Banking Centers: $290.7 billion. 4. Oil Exporters*: $236.6 billion. 5. Taiwan: $184.5 billion. 6.