ABC may have revealed too much in its weekly Lost sneak preview video. The main page on Lost's website currently shows a clip from this week's episode, "Par Avion." The clip, and more detailed discussion of the preview, will appear after the jump.

Generally speaking, the clip features a conversation between Kate and Mikhail, the man that Locke, Kate, and Sayid encountered in "Enter 77." Mikhail reveals information that some viewers have been debating about for quite a while. I would hesitate to call the information a major spoiler, but it is far juicier than anything ABC usually includes in its sneak peeks. Stop reading now if you do not want to be spoiled for "Par Avion."