This is a reply to Mateisiman:
I do agree with on the whole Lois & Clarke thg... But dont compare smallville with the original storyline... I mean if Lois had ever seen Clarke as he is in his teenage yrs & Lex as well... wud his cover not have blown when he first appeared as a Vigilante & hid his identity with jus a pair of glasses?
Unless the show makes superman wear a mask...I dont think he can hide his identity from any1.