Wouldn't a a slow-moving C-130 make an easy target itself?
That's my point.
Here's the MOAB video link. It's a cool bomb for a war zone- not neccessarily for a sneak attack.
http://www.globalsecurity.org/military/systems/munitions/moab.htm
The video link is half-way down. You'd really need air supremacy to try this in Iran, wouldn't you?