Where, Oh Where Has My Little Girl Gone? by Sarah Stegall copyright © 1994 by Sarah Stegall Writer: Chris Carter/Paul Brown Director: Chris Carter/Michael Lange I’ve started and scrapped this review three times. “Duane Barry”/”Ascension” is a very difficult arc to get a handle on. While there are problems with pacing, direction, and content, there are moments–defining moments–in this two-part series that characterize “The X-Files” more sharply than anything else that has appeared in the series so far. Someone needs to remind Chris Carter that when you begin, literally, with a scream, it’s hard to go anywhere but down. You’ve…