FOR USE MONDAY, DEC. 30, 2013 AND THEREAFTER - FILE - In this July 23, 2013 file photo, French soldiers patrol through the central market in Timbuktu, Mali. A branch of al-Qaida occupied Timbuktu for 10 months, up until January 2013, when France sent soldiers to flush out the extremists. When they fled, they left behind thousands of pages of documents, including over 100 receipts, showing that they assiduously tracked their cash flow, down to the $0.60 one of them spent for a single lightbulb. The open-air market pictured here is one of many where the fighters bought supplies, carefully tracking their expenses on a notepad. The accounting system on display suggests that far from being a fly-by-night terror organization, al-Qaida is attempting to behave like a corporation. (AP Photo/Rebecca Blackwell, File)