this is downright interesting:
At least 40 al-Qaeda fanatics died horribly after being struck down with the disease that devastated Europe in the Middle Ages.
He said authorities in the first week of January intercepted an urgent communication between the leadership of al Qaeda in the Land of the Maghreb (AQIM) and al Qaeda's leadership in the tribal region of Pakistan on the border with Afghanistan. The communication suggested that an area sealed to prevent leakage of a biological or chemical substance had been breached, according to the official.
"We don't know if this is biological or chemical," the official said.
If this was bubonic plague, some of the comments point out that it's treatable with antibiotics and fairly easily cured, which makes it not a very good weapon. For death, that's so; for scaring hell out of people and overloading medical facilities, it'd do quite well. Face it, if they could turn a bunch of infected fleas loose in an area and a bunch of people broke with it, there's be mass panic, and not just in the city/cities where it happened.
And it's possible they were trying for/hoping for pneumonic plague, which is a really nasty beast. Or, it could have been something else entirely. Maybe we'll find out someday.