What's on the 'laptop of doom'?

It looks like your typical Dell laptop. But this one was left behind by an ISIS fighter who fled an attack by a group of Syrian rebels. When the rebels powered it on, it looked like it's hard drive was wiped clean. But then they found the 'hidden files' section. There were 35,347 hidden files, with training information, propaganda, even tips for avoiding authorities while traveling between jihadi hot spots. What was most troubling was a plan for a biological weapons attack using the bubonic plague. Foreign Policy reporter Harald Doornbos was able to look through the contents of the laptop. He said it contained instructions to 'basically destroy the world.'

Former CIA officer Bob Baer says terrorists are more likely to launch an attack using Ebola rather than Bubonic plague. He explains why in a conversation with Jake Tapper and former U.S. Ambassador-At-Large Daniel Benjamin.