After Brooke Melton died in a car crash, her parents approached attorney Lance Cooper to investigate. What he found in her 2005 Chevy Cobalt would lead to GM’s 30 million-vehicle recall.

Courtland Kelley knew there was a problem more than a decade ago. He tried to speak up. He sued. He lost.

An interview with James “Jimmy” Hoffa, president of the International Brotherhood of Teamsters which had recently been described by Attorney General Robert Kennedy as “the most powerful institution in this country—aside from the United States Government itself.”