Christian, Sayid, Ben, and David
Christian. Is he FChristian or does one have to be newly dead to be infected?
He could carry Aaron, and I’m not sure we’ve seen other ‘someone you know who’s dead’ hold something except Smocke and the infected Flaire and Flyid.
Did Dogan send Flyid to be killed OR because he knew as a candidate he couldn’t be killed?
Did Flyid wait until Sundown to off Dogan? Was Lennon killed ‘cuz he was so obnoxious?
When you drown in the pool without bein’ dead first – do you come back infected?
Did the ‘preview’ commercial imply we’re losin’ Ben : ( ? OR, is it a fake lead-in?
Why would Omar basically offer his wife to his brother? Why did Keamy even nab up Sayid? (Personally, we loved how they played with his name and asked, “Get in-Sayid”)
AND
What’s with David’s eyebrows? Does he tweeze or was he born that way?

I have been doing non-stop research on eyebrows and people named David. Nothing. Very sorry. Next question please.
Those are some gnarly questions. All I have for you is concerned with the promo. The producers do not have anything to do with the making of the weekly previews, it’s all ABC, and ABC has no more information than we do on the show. They simply are given an assortment of clips. ABC writes the promo on their own and are not considered canon.
A good example of erroneous ABC promos was seen just this season. We’ve seen promos for episodes that we haven’t actually seen for two or three weeks.
Don’t give ABC’s promos any credence.