Just how pervasive is 'sexting,' the nude-photo-sharing by cellphone that seems to be happening a lot? I've seen reports of the practice in more than a dozen US states, New Hampshire the latest one (see this). A new study tried to get a handle on just how much this is happening, if not why. The survey, commissioned by the nonprofit National Campaign to Prevent Teen and Unplanned Pregnancy and … [Read more...] about Is ‘sexting’ a teen trend?: Study