When Obi-Wan suggests that Anakin is in danger, why is it that Padme, the only non-Jedi we've heard mention the Sith in these movies, suggests that he's in danger from the Sith? Are the Sith common knowledge in the galaxy? Did the Jedi tell the Senate that they are back and threatening the Republic? Did Anakin mention something to Padme about the Sith at one point or another? The line seems out of place to me.