<p>It took six little letters to get our attention the way years of circumstantial evidence and track-and-field busts couldn't.</p>
<p>THG.</p>
<p>NFL.</p>
<p>Finally, the first real steroid scandal in American team sports, perfectly timed with Major League Baseball's announcement that at least 72 players failed steroid tests in the spring, has forced serious discussion about the biggest issue clouding the future of sports: performance enhancement.</p>