Review: Ken Burns explains the anti-Native American plot to kill bison

Ken Burns' two-part series The American Buffalo tells the story of bison's near-extinction in America.

Bison's population went from 60 million in 1800 to just 300 by the dawn of the 20th century.

Teddy Roosevelt wrote in his 1885 book Hunting Trips of a Ranchman, killing bison was "the only way of solving the Indian question".