ROANOKE CO., Va. -

Marijuana is now completely legal in two states.

Yesterday, President Barack Obama said he doesn't think smoking marijuana is any worse than drinking alcohol, but still wouldn't encourage his kids to do it.

For anti-drug groups here in Virginia, national news can present local challenges.

"In the end this is about choosing a healthy behavior," Nancy Hans says.

Prevention specialists state the obvious to kids: Marijuana is illegal.

But for kids, it's a message becoming convoluted.

Buying marijuana is still a federal crime, but in Washington and now Colorado, it's one the federal government isn't enforcing.

"It becomes sort of a mixed message when federal law says no you're not supposed to be doing this, but the two states are doing it," Hans said. Hans runs the Youth Prevention Council in Roanoke.

The illegality is first and foremost.

Questions of legality will continue after President Barack Obama said he didn't think marijuana was any worse than alcohol.

What prevention experts have especially turned towards is what they call the objective truth: marijuana is bad for kids, especially young ones.

"I think just continuing to have the same, consistent message. Continuing to talk to our kids and having that open dialogue about the consequences and the repercussions of using drugs," said Hayley Poland, Roanoke County's school counseling coordinator.

Roanoke County officials data says that the number of kids smoking marijuana has decreased. But the perception that it does them harm has also gone down, which could mean more use in the future.

Experts say the best way to combat the statistics that show marijuana use will increase is to get community partners involved to inform parents of the dangers.

"It comes back to the parents and the parents having that communication with their child in that, yes, this is wrong, yes we don't want you to do this," said Poland.

The idea of legalizing marijuana is seemingly becoming more popular.

Prevention specialists will continue to harp, though; that it's illegal and bad for you.

For now, those two things haven't changed.