In an attempt to put a face on civilian victims of U.S. drone strikes, a group of artists has installed a massive portrait of a girl facing up from a field in Pakistan.

The poster, measuring 90 by 60 feet and made of vinyl, was unrolled with the help of locals two weeks ago in a village in the Khyber Pakhtunkhwa region in northwest Pakistan, where residents say attacks by the pilotless aircraft are a part of daily life....