How did ISIS become so wealthy?

It's true - ISIS is one of the most financially successful terrorist groups in recent history. But where does all this money come from? Shirts They Don't Want You to Own | http://bit.ly/1vR6TkL Subscribe | http://bit.ly/stdwytk-sub The Rabbit Hole | http://bit.ly/stdwytk-home Audio Podcast | http://bit.ly/stdwytk-audio-itunes Follow us | http://bit.ly/stdwytk-twitter Like us | http://bit.ly/stdwytk-fb Here are the facts. Join Ben and Matt to learn the Stuff They Don't Want You To Know about everything from ancient history to UFOs, government secrets, and the future of civilization. Here's where it gets crazy. New videos every Wednesday and Friday. Visit our Mothership: http://bit.ly/stdwytk-hsw-home Feed your brain: http://bit.ly/stdwytk-brainstuff-home Our big brothers: http://bit.ly/stdwytk-sysk-home Blow your mind: http://bit.ly/stdwytk-stbym-home History class: http://bit.ly/stdwytk-symhc-home Your mom: http://bit.ly/stdwytk-smnty-home