User blog comment:Fernandezluigi/War Machine Is Back!/@comment-5334977-20130529021734/@comment-4651179-20130531205943

Actually it hasn't finished. The story is the following (I wouldn't call this spoilers as the issues came out 1 to 3 months ago):

A.I.M. stole an Iron Patriot Armor, they upgraded its simple and basic on-board A.I. to make it sentient, creating an army of Iron Patriot drones to commit certain attacks which would be blamed on the USA. Meanwhile Phil Coulson cited Rhodey Rhodes to talk something.

That's all we have so far.