When the National Football League and retired players settled a class-action lawsuit about brain damage in 2015, the agreement raised as many questions as it answered.
The $1 billion question: What did the league know?
Because the settlement was reached without the evidence-gathering process known as discovery, the NFL did not have to reveal what it knew about the long-term effects of repeated head blows that players experience over the course of a football career.
But the NFL is now being challenged to fess up, after New York Supreme Court Judge Jeffrey K. Oing ordered the league to open up its records to insurance companies that would have to pay for the class-action settlement, according to The New York Times.