Not really true. For some reason it seems instinctual to take nude pictures once you pass a threshold of trust and competence with technology. In my experience, this is pretty common across political strata -- insofar as the gap exists, it's more of a generational thing, where older people are less likely to be comfortable with technology, and therefore don't trust it with anything they want to keep private (these same people are usually nervous about online banking, etc., too).

I …flat out don't think this is true. Not sure how else to put it, but it is just outside my experience to correlate nude-picture-sending willingness with technology comfort. I don't really have theories on what it does correlate with – for instance I'm not willing to put it on a liberal/conservative spectrum – but I just don't think comfort with technology is the thing.

Of course neither of us really know, because only the NSA has the data :)