The word idophile is an underage person who is a paedophile.
The unfortunate thing about idophiles is that they can have sex with underage people without getting into too much trouble.

v. collectively or individually finding someone/something to blame for a problem, as opposed to brainstorming which connotes finding solutions to a problem

n. the act of finding someone/something to blame for a problem

(from a TV ad for HD television)