What drove a company of American soldiers – ordinary young men from around the country – to commit the worst atrocity in American military history? Were they “just following orders” as some later declared? Or, did they break under the pressure of a vicious war in which the line between enemy soldier and civilian had been intentionally blurred? American Experience focuses on the 1968 My Lai massacre, its subsequent cover-up, and the heroic efforts of the soldiers who broke ranks to try to halt the atrocities, and then bring them to light.

It influences elections and sways outcomes -- gerrymandering has become a hot-button political topic and symbol for everything broken about the American electoral process. But there are those on the front lines fighting to change the system.

The documentary series aims to reshape the way the public sees cancer and strip away some of the fear and misunderstanding that has long surrounded it. The story of cancer is a story of human ingenuity, resilience, and perseverance but also of hubris, paternalism and misperception.

PBS Frontline takes an in-depth look at the multibillion-dollar "persuasion industries" of advertising and public relations and how marketers have developed new ways of integrating their messages deeper into the fabric of our lives. Through sophisticated market research methods to better understand consumers and by turning to the little-understood techniques of public relations to make sure their messages come from sources we trust, marketers are crafting messages that resonate with an increasingly cynical public.