If I recall, this was season 2. Maybe even season 1.

Edit:
Becides you gave the reason in your own sarcastic quote.
It's a show mostly about white people grappling for power in the US. It's not about war or terrorism in the middle east. And there's nothing wrong with making a show that's not about that. This character and that whole part of the world wasn't important to the story. So wasn't given a full spotlight treatment.

If you think the show should be about sup-terrorists in the middle-east. That's a cool idea. There's plenty of story there. But that's not this story, and that's ok.