More than 11.5 million people are under blizzard warnings, another 4.3 million are under winter storm warnings, and about 20.6 million are under an extreme heat watch, according to forecasters.
The film follows CBS News correspondent Steve Hartman and photographer Lou Bopp through their seven-year journey to document the toll of America's school shooting epidemic.
The war, which shows no signs of ending soon, has upended global air travel, disrupted oil exports from the region and sent fuel prices rising across the world.
