Consider it this way. If the matter were pursued, the publicity would be immense. There would be speculation about whether or not your teenaged son were gay.
The boy was no longer a page, but safe at home. He wasn't harmed, really, just grossed out. The boy doesn't seem inclined to pursue a relationship with Foley, he wasn't seeming to be influenced.
If you felt that the people you spoke with were going to be proactive in making sure Foley couldn't get near more pages, that may be good enough for you.
Maybe it really is just me, or just a handful of me's, but if my son shows me the kind of conversation he is having via email with a man who is not only decades older, but a SITTING MEMBER OF CONGRESS, I am not going to sit by and watch him chairing hearings on missing and exploited children, sanctimoniously passing legislation on finding and punishing these perverts all the while knowing he is one himself, no way.
That is like the rape victim who doesn't want to endure any more embarrassment or pain, won't prosecute because it means facing her rapist in court -- how many times have we heard the guy got X-number more victims before he was stopped? How many of these pages were to be preyed upon before Foley was stopped?? Who knows how many men are scarred for life, or worse, will BECOME PEDOPHILES THEMSELVES because these parents were "comfortable" and this LA MOC, the GOP Leadership didn't pull the plug when they were first notified??
If you felt that the people you spoke with were going to be proactive in making sure Foley couldn't get near more pages, that may be good enough for you.
They KNEW nothing happened, they KNEW Foley was not kept from any more pages -- the only way that could have been accomplished was for Foley to have been removed from Congress, either voluntarily or otherwise. They knew he continued in his role as chair of that committee -- they sound more to me like they just didn't want to make a stink, good GOP'ers and all. Sad, very sad.