West Africa is becoming a new source of income for al Qaeda. So the U.S. is attacking the problem with some unique tactics. That includes putting sanctions on two senior military commanders of the African nation Guinea-Bissau. Air force chief of staff Ibraima Papa Camara and former navy chief of staff Jose Americo Bubo Na Tchuto were accused of being "drug kingpins" and key members of a drug smuggling operation that moves cocaine from South America to Europe and the Persian Gulf, via Guinea-Bissau. The sanctions freeze any assets the two men have in the United States, and prohibit Americans...