TODAY 8a: NBC News exclusive — DEA head announcing a ‘public safety alert.’ Ovarian cancer risk factors and warning signs. Ricky Martin and Enrique Iglesias on new tour.

<p>An NBC News exclusive — Kate Snow speaks with the new head of the Drug Enforcement Administration on the growing number of counterfeit pills being sold online and what it means for your teen. Plus, meet twins who are spreading awareness on ovarian cancer as they battle the disease together — NBC News’ medical contributor Dr. Natalie Azar explains the risk factors and warning signs to look out for. Also ahead, Ricky Martin and Enrique Iglesias give us a backstage look at their new tour!</p>