First it was state-controlled liquor, now it's marijuana, legal and taxed in Washington. If Rep. Jim McDermott has his way, online gambling will also be made legal - and would be taxed by the federal government. One philosophy behind so-called "sin taxes" is that, if people are doing it anyway, maybe the activity should be legalized and taxed. We want to know what you think: do you agree with these sin taxes? Do you think online gambling should be legal? Click here to leave your comments inside.