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

In the Rewrite: The new job description for America's teachers

08:32

In tonight's Rewrite, Lawrence O'Donnell says the job description for American teachers now includes how to handle mass murder, as Dara Hass found out. Hass is an English teacher at Marjory Stoneman Douglas High School and 3 of her students were killed last week.