extremism specialist moustafa ayad was getting alarmed.wing the death of the extremist leader, the digitaljihad was raising a dirge to baghdadi on twitter. flitting from account to pro—is account, ayad noticed something strange. some of them had short, discrete links, not within their tweets, but nestled in their biographies. he clicked. it was a powerpoint. in a folder dubbed "the mujahid's bag" and that taught you how to hijack planes. in that folder is everything you need to know how to build your own bombs, create your own chemicals, plan an attack, co—ordinate an attack, kidnapping operations, stabbing operations. things that teach you how to be a better terrorist, essentially. when moustafa told me his story, i was completely astonished. there, just a click away, was folder after folder, file after file, just this vast multi—ethnic, multilingual expanse of terrorist content, bigger than any of us had ever heard of before. for moustafa, though, his story was just beginning. this one is much clearer. this is higher resolution. to his k