Factual error: Throughout the episode the military are shown carrying Israeli Military Industries Tavor assault rifles. Israel does not sell weapons to any Arab states. Especially if said state already allied with the US and is thus buying its weaponry from the US.
Continuity mistake: When the family is on the plane taking their seats, the wife goes to sit with her husband and sets her purse and clothing onto the seat in front of them, however you see the clothes slip off the seat and only the purse remains. In the next shot of the seat in front, the clothes are on the seat on top of the purse, without any character picking them up.
Two Graves - S3-E10
Continuity mistake: Before getting on the helicopter, Sophia and Leila are abreast of each other at the chopper's door, but the next instant cut shows Leila getting ready to board first, and Sophia behind her.
Bedfellows - S3-E7
Continuity mistake: Leila's head scarf alternates between shots from being on her head to off as she addresses the people at the round table.
A Rock and A Hard Place - S3-E5
Continuity mistake: A notebook on Leila's desk is upright when viewed over her left shoulder, but flopped over when viewed over Ahmed's right shoulder.
Continuity mistake: Bassam's hands alternate between being on Fauzi's shoulders to wrapped around his throat over several cuts.
Inside Men and Outside Women - S2-E9
Continuity mistake: Leila places the glass carafe of water to the right of the holding chest. The next shot the glass carafe is on the right side of the chest.
Revealing mistake: When John Tucker calls Bassam, you can see that he is not calling anyone, because the iPhone home screen is visible. (00:05:50)
Answer: Nusrat was killed because she knew the secret of Jamal's treatment of her, the pregnancy that was not Ahmed's, but Jamal's, etc. She was a liability to the al-Fayeed family who could be used by their enemies to erode their power. Also, it was Ahmed who killed Jamal, not Nusrat.