The Iranians do not blow hot empty rhetoric.
They are not in the business of negotiated dialogue.
This is evident with their demand for the release of the now executed Saudi Shiite cleric by the Saudi govt which they retaliated immediately with the summary execution of Quatari royals who where abducted by an obscure Iraqi shiite militia backed by Tehran.
Now that the Iranians have openly tabled their demands for the unconditional and immediate release of El Zakzaky, I believe they are doing this from a point of leverage and knowing how the Iranians roll they would have had a strong response already in place targeting specifically prominent figures or their relatives in the Nigerian Govt and the Sunni community.
Kalu writes from Lagos