Digital photo manipulation has been used since the 1860s primarily to alter political photos by erasing enemies or making war photos seem more violent. Beginning in the 1970s, photos were increasingly manipulated for aesthetic reasons like appealing body images rather than just statements. Today, nearly all photos are altered in some way through airbrushing or other editing. While some manipulation is considered artistic expression, concerns remain around altering photos in untruthful or misleading ways, especially those presented as factual in news, science, or to portray unrealistic body images. The ethics of digital photo manipulation remain unclear with vague guidelines often unenforced.