“Digital Directions: To Tell The Truth” is an interesting article from Popular Phootgraphy that considers the issue of photo manipulation and what can be done to combat it.

“Even if you are an upstanding photographer who never manipulates an image, you still have to worry about what happens to your digital file after you submit it. For example: you shoot a great celebrity portrait and e-mail the original JPEG file to the National Inkliar. It turns up in print showing that celebrity in a compromising position. How do you prove that your original was altered after you submitted it? Hint: Do high lawyer fees, FBI crime lab analysis, and months of damage control sound reasonable?”

Website: Popular Photography - Digital Directions: To Tell The Truth