Everyone knows that Red Matter isn't the problem.
Of course, we all grieve at the loss of the planet Vulcan. The billions of individuals senselessly executed by the time-traveling Romulan Nero is a tragedy from which the Federation will likely never recover, and no words can take the pain away from the thousands of off-world Vulcans who now have no home to which they can return.
But now is not the time to engage in knee-jerk, politically-tainted talk about new laws involving the use of Red Matter to create black holes.
Nero, obviously an extremely disturbed Romulan, represents the kind of evil that unfortunately exists in this galaxy, and no new legislation or regulations can do anything about that. Evil and madness will always be a factor within the various civilizations of sentient humanoids, and no one can predict how or when it will manifest.
Loose talk about further restricting the lawful possession of Red Matter or the fundamental right to manufacture black holes will not change that, and will not bring the lost souls of Vulcan back.