For years, Jared Fogle was known as the "Subway guy" who lost 245 pounds thanks, in part, to his regular patronage of the sandwich chain. 

He was seen by the public as an amiable, all-American success story, which, for many, makes this week's news all the more shocking. According to court documents released Wednesday, Jared Fogle agreed to plead guilty to allegations that he possessed child pornography and traveled to engage in sexual acts with girls under the age of 17. 

Joelle Casteix, author of "The Well-Armored Child: A Parent's Guide to Preventing Sexual Abuse,"
joined Take Two to discuss what this case reveals about the status of child pornography in the U.S. and the profile of a sex offender.

To hear the full interview with Joelle Casteix, click the link above.