Atheists are still bound by the letter of the law if nothing else. This is not to say that this is the only "moral compass" atheists have; far from it, but claims of immorality being inherently tied to atheism is really just an excuse to point a finger at someone who doesn't share one's own beliefs.
Personally, I'm of the notion that being a terrible (hypocritical) Christian, Muslim, Jew, Buddhist, whatever, who doesn't actually live by their professed beliefs in practice, is much worse than the individual who ultimately has to rely upon their own moral compass based upon their individual experiences and independent beliefs.







