HOWEVER...
Polling in a country like Iran would have to have a huge margin of error because polling is ILLEGAL. Only a stooge like Zogby would try to push a poll that not only can't be verified or corroborated, but the methodology itself is suspect.
While I have a sneaking suspicion that the poll is generally pointing in the right direction, I don't think the numbers could stand up to any type of examination.
You bring up an interesting point. However it's not poll questions that are illegal, it's dissenting answers that are. Splitting hairs? Maybe...