Bison, otherwise known as buffalo, are in a precarious place today. They were rescued from the brink of extinction, but not to  roam wide open spaces. There used to be tens of millions of buffalo throughout the West, until hunting nearly wiped them out. That chapter of American history, and the story of buffalo today, make up the new documentary called “Facing The Storm.” Ryan Warner talks with Montana filmmaker Doug Hawes-Davis of High Plains Films.