Iran Academic Question: Suspending North American Studies?

Last night, seeking an answer to a question concerning Iran and the US, I sought counsel from the English-language website of the Institute of North American and European Studies at the University of Tehran. (Dr Seyed Mohammad Marandi, one of the most prominent post-election commentators on non-Iranian media, is based at INAES.)

I got no joy, for INAES' homepage reads simply: "This Account Has Been Suspended".

Why?