I use Time Machine to back up my Macs. Due to a house fire, I was forced to get a new 15" MBP Retina. I restored from the previous MBP Retina. In iPhoto, my picture count went from about 11,000 pix to 42,000. What I found was that there were thousands of face closeups in addition to the images I had taken. I've used PhotoSweeper to weed out many of the duplicates. How can I get rid of all the extra face shots?