Major League Baseball and the performance-enhancing drug issue will be back at center stage Tuesday on Capitol Hill, but this time Commissioner Bud Selig is set to appear in a much more proactive position. Selig, former U.S. Sen. George Mitchell, and Don Fehr, the longtime executive director of the Players Association, will be asked on Tuesday if the Mitchell Report has enough teeth, or if Congress needs to react. Nearly three years ago, Selig and other officials were taken to task by members of the House Oversight and Government Reform Committee who said that MLB's drug testing policy was not strong enough and that it lagged behind those created by the other North American-based professional sports leagues.