That's a very broad question. The short answer is yes, but I'd start with the wiki on the subject and go from there:hi
In case of misunderstanding, I'm not supporting iran's regime. I'm just curious to know.
Is there any evidence that iran is supporting terrorism or has connections to terrorist organizations like ISIS?
I'm not sure of the official line, but I would tend to consider that a separate issue. It can be grey though.or is it just for iran's threats of destroying israel?