Could ISIS use Ebola to Attack America and Europe? Very Plausable

I recently read a book on the Black Death a while back called The Great Mortality: An Intimate History of the Black Death, the Most Devastating Plague of All Time.The book talked about how the Black Plague came to Europe through a biological warfare attack by the Mongols toward a city in Asia Minor call Caffa held by the Genoa in 1347. 

What Jani Beg (the Khan of the Golden Horde) did when the city of Caffa was under siege was use his catapults to toss plague corpses into the city in order to break the siege. The plague corpses infected a number of Genoese sailors who attempted to flee the city (and devestated Caffa) and thus inadvertently inflicted the Black Death on much of Europe. The Black Death caused the death of 75 to 200 million people in Eurasia.

An interesting side note was that Jani Beg was a Muslim. So this got me thinking that what if ISIS decided to send a number of their operatives to West Africa to get their hands on Ebola infected blood. Or maybe even worse infect themselves and become living (not for too long) "Jani Beg plague corpses." All they really need is a blood soaked rag from an Ebola patient in Liberia and every operative can potentially become a living "plague missile."

What these "ISIS plague missiles" could potentially do is send packages of Ebola to various victims in the US and Europe. It would only take a few blood or vomit soaked rags in an Amazon box to be sent to various people in the US and it might be worse than a letter bomb. 

What would be terrifying is that this attack would be nearly impossible to detect. You can detect bomb materials in a box sent in the mail but these are just rags and gauze and things. You cannot use a metal detector or some sniffer to catch this kind of biological warfare attack. Hell, they could just send a bunch of bloody rags that that are not even Ebola infected and it will create the same kind of panic.

The job of terrorists is to inflict terror and this would strait up terrify people. I know it would be fairly difficult to catch Ebola from a bloody rag made in Syria all the way in the US because of the nature of the virus. However, the fear it would cause would be devastating. Each one of those boxes would have to be checked out by health care officials and tested to make sure it isn't virulent. Then disease detectives would have to check the person that opened the box and everyone that person came in contact with. I wonder if the CIA and the FBI are checking to make sure this kind of thing doesn't happen. I really hope they are because this attack would be scary in the extreme.