According to wifey's relatives back there, Meth has become epidemic.
http://www.usdoj.gov/ndic/pubs3/3920/index.htm
In the United States khat use is most prevalent among immigrants from Somalia, Ethiopia, and Yemen. These individuals use the drug in casual settings or as part of religious ceremonies. Abuse levels are highest in cities with sizable populations of such immigrants including Boston, Columbus, Dallas, Detroit, Kansas City, Los Angeles, Minneapolis, Nashville, New York, and Washington, D.C. Law enforcement reporting indicates that some other groups in these areas have begun abusing the drug.
Many Muslims, including Somalis, use khat during the religious month of Ramadan. Law enforcement officials in the United States indicate that a large number of khat seizures occur during Ramadan. In 2002 Ramadan occurred from November 5 through December 4. During November and December, U.S. Customs Service (USCS) officials seized nearly 3,000 kilograms of khat from airports in California, Illinois, Kentucky, Minnesota, New York, and Tennessee. [Note: the USCS is now part of the Bureau of Immigration and Customs Enforcement Service under the Department of Homeland Security.]