If he held citizenship in any country in addition to or other than Iran, that country would have diplomatic channels to go through to deal with this. Specifica

If he held citizenship in any country in addition to or other than Iran, that country would have diplomatic channels to go through to deal with this. Specifically to this case, you would like to think Canada would do more then write a letter to the government of Iran if he had Canadian citizenship, but I do really doubt they would do more than 'tense negotiations.'