U.S. Sen. Rand Paul, R-Ky., disagrees with Attorney General Jack Conway'sopinion that industrial hemp farming remains illegal in Kentucky.Earlier this year state lawmakers passed a bill allowing farmers to grow the crop if the federal government lifts a longstanding ban. Agriculture Commissioner James Comer has been a champion of hemp production, and argues a recent decision by the Justice Department not to challenge marijuana laws in others state clears a path for growers.But Conway's opinion makes it clear any farmer who grows the crop intentionally "will expose themselves to potential criminal liability and the possible seizure of property."Paul—who defeated Conway in the 2010 U.S. Senate race—says state law permits hemp production and Kentucky growers should be ready to begin.From Paul's office: