An article was published earlier this week which detailed an ad that used an image of a 9/11 terrorist to sell insurance; specifically Mohamed Atta.
I've noticed these types of ads on facebook and I try to block them whenever possible. However I saw one this morning that got my attention. It was for criminal history find and featured a mug shot of a black man. The image was altered to exaggerate the size of his nose and lips; characteristic of racial stereotypes.
This would be hard to notice due to the original image isn't known outside the realm of 'internet humor'
As you can see, there is a clear difference. All I have to present is evidence that this is common place; the use of shock images to draw gullible people into clicking on ads. The images they use may be doctored and most people will not know it. In short, the people that make this ads are sinking lower; I guess that is to be expected.