You might recall that the Supreme Court ruled unconstitutional the 1996 (Republican-sponsored) law that made Internet sex with minors a crime.) So this huge scandal is that Hastert (allegedly) insufficiently responded to something that was not a crime!
I never said that Foley committed a crime, in fact, it's unlikely that he did.
I used ambiguous terms, because there is somewhat of a disconnect between the law and what people feel, on this subject. I am also 52 years old. I try to imagine myself having a sexual interest in a 17 year old girl. Even if I were single, and it were legal where I live, it wouldn't feel right. I'm sure that this didn't feel right to Foley, either.