IE 11 is not supported. For an optimal experience visit our site on another browser.

Measles outbreak linked to anti-vaccination mega-church

07:12

A measles outbreak in North Texas has infected, at last count, 25 people. Chris Hayes talks with Arthur Caplan, Professor of Bioethics and Director of the Division of Medical Ethics at New York University about the outbreak and the larger culture of information, and misinformation, around vaccinations.