alterna-Sawyer saw alterna-Kate was fleeing in handcuffs and helped her avoid notice in the elevator. Would he have done that if he was a cop of some sort?

Smokey, Infections and whatnot
If someone needs to die first to be infected, like Sayid, where did Claire die? I think she may have died when her house got blown up by Widmore's soldiers when they came for Ben. How did Rousseau describe her shipmates that went bad? They likely died/became infected when they went…

Sealab!

Were you really that desperate to live on after the apocalypse that you would resort to eating manwich?