Dani Beckstrom reports from New York on the powerful cross-country storm — slamming the Midwest and now barreling toward the East Coast. More than 100 million Americans on alert for severe weather — Dani has the latest forecast; Faith Abubey at Atlanta’s Hartsfield Airport, where crews are struggling to keep up with cancellations and delays — from the weather and the partial government shutdown; James Longman in Iraq as the war with Iran enters week three — the Pentagon now saying U.S. strikes