Censorship in emacs

censor.el

;;
;; Censor text temporarily in emacs
;; 
;; (Using this for screen shots mostly) 

(defvar censor-face
  '(:foreground "black" :background "black")
  "Face to use for censoring")

(defun censor ()
  "Censor the current region"
  (interactive)
  (let ((overlay (make-overlay (region-beginning) (region-end))))
        (overlay-put overlay 'face censor-face)))

(defun censor-remove ()
  "Uncensor the current region"
  (interactive)
  (remove-overlays (region-beginning) (region-end) 'face censor-face))
    

Of course this does nothing to remove the actual text. I'm just looking for that [REDACTED] look in screen shots.