We've all heard about the trend of teenage sexting.
Young people sending nude pictures of themselves to their friends.
But there's a growing worry that these photos may find their way online into the wrong hands...
Predators who may use these photos for extortion or even as a means to initiate meet-ups.
LA Sheriff Jim McDonnell sent an open letter on Facebook to parents Sunday warning of the trend.
Host A Martinez spoke with him earlier, and he said his officers are investigating scores of cases involving photos of underage children that have found their way online.
To hear the full interview, click the blue play button above.