After learning more about it, how in the hell did Iran fail to kill the MQ-1 Predator?

It has the top speed of my Honda Accord, and is about as manuverable as the Spruce Goose. Yes, they were using Su-25, the Soviet Fight-Bomber design. But even the A-10, which is much less suited to air-to-air attacks has killed air targets.

Nobody should be fearing Iran.