What I want to know is:
1. Is The Tart (Lauren aka Mrs. Vaughn) actually working for the NSA? Maybe some strings were pulled and she was ordered to kill Lazaray (maybe by Lindsey's replacemnt)?
2. Is The Tart a double agent working for the Covenant and the NSA?
3. When The Tart met Sark in the car earlier this season, and he showed her the pictures of Sydney killing Lazaray, she looked shocked and upset. Was that because she was upset that Vaughn knew this and didn't tell her?
4. Maybe The Tart was a plant by the Covenant and she was set up to meet Vaughn and keep up with him in case Sydney showed up (thus explaining how they got together so quickly)?