Hugo Chavez wants to sell the 21 F-16s in the Venezuelan Air Force to Iran in response to the arms embargo imposed for his lack of cooperation in the war on terror.
These are older F-16s. With versions of the AIM-9 Sidewinder that can only really handle rear-aspect engagements (Chavez did acquire some AIM-9Ls, which are all-aspect, but missiles have expiration dates). Not only that, Iran doesn't even have the logistical base to take care of these planes. No Iranian planes use the engines or radars involved.
One dictator ripping another dictator off. Can't get much sweeter than that.