For months the U.S. has been bombing oil refineries, lowering prices for oil and shutting off trade to areas where ISIS is in power. Although these plans are going to hurt ISIS in the long run the organization still has a huge tax base, which includes parts of Iraq and Syria that are rich in oil. The U.S. is attempting a new tactic which includes cutting off ISIS's money flow. According to Business Insider, since the U.S. destroyed ISIS's oil refineries the group has relied heavy on taxing salaries and businesses. Since 50% of Iraqis work for the government it makes ISIS huge profits. ISIS also extorts money from unprotected corporations in the region and taxes Christians in the parts of Iraq they are in control of a tax for not converting to Islam. Needless to say, ISIS will be difficult to destroy quickly and this plan the U.S. has of cutting off its money may or may not work. "ISIS makes most of its money from plunder. We’re seeing that over and over again. They go from one town to the next and knock over a bank or several banks and go house to house and extract whatever is of value." Jonathan Schanzer, vice president for research at the Foundation for Defense of Democracies said. For more news on ISIS, click here.