My worry is that the application of the law will be parsed along racial lines and be declared racist, or that false claims will be filed. Additionally, the law can be perverted if "substance" abuse is not narrowly defined. Will it include cigarette and cigar smokers? What if it includes obesity? How will these states square this with new laws permitting the use of marijuana? Once again, this gives power to the state to determine if your physical and mental health is a danger to your family and others so that you are rendered incapable of exercising your rights protected by law. At its base, it is a form of ostracism...at its worst, it is the nanny state formally sending you to your room--I fear the politicization of this power.