The CIA chief of station calls the Unit TOC to advise of Blane's disregarding her instructions. The TOC communications officer says "the CIA station chief in Tehran" is calling. First, she's the station chief in Beirut, where the embassy's location had already been established. Second, the CIA hasn't had an official station in Tehran since 1979, when the US ceased having an embassy there.
When Blane flashes the bandage on his left hand to the CIA asset Shirin in the Iranian embassy, he does so in a conspicuous manner, and gestures at her. He does this while the head of security for the embassy is standing right beside him, which would endanger the asset.
Colm Meaney plays the charge d'affaires of the US embassy in Beirut. When lecturing Blane, he says that "diplomacy is different to kicking in the door." Meaney has fallen back on the British English variant; an American would have said "diplomacy is different from kicking in the door."