The mother of my goddaughter's has many times insisted that her girls (3 and 1.5 years old) cover their nipples before she can take a photo of them if they are doing something cute or photo worthy and happen to not have a shirt on (if your familiar with little kids you will know they end up topless semi-often). She has claimed that this would constitute child pornography otherwise.
I am highly skeptical of this. The girls have less in way of 'breasts' right now then I do as a grown man, and I'm not worried about being arrested for indecent exposure if I go swimming with just my swimming trunks on (though in my case inflicting any part of my pasty white body on another may count as a crime against humanity).
Could any image not taken with the intent to be sexual/provocative which happens to have been taken when a toddler wasn't wearing a shirt, but with diapers/pants on, really qualify as child pornography?
The godchildren live in Georgia, though she seems to be concerned about federal laws not state ones.