Well, the United States has quite a few laws and statutes involving obscenity, especially related to the distribution of sexually explicit material to minors, to the point where I think it's always better to be safe than sorry. I'm not sure if this is still accurate, but at one point I am very certain it was illegal to knowingly distribute sexually explicit material to minors, and we do have minors that access this board.
http://www.usdoj.gov/criminal/ceos/obscenity_stats.html * 18 USC ยง 1470
Transfer of Obscene Material to Minors
Penalties: Imprisonment for up to 10 years, and a fine of up to $250,000.
