Rob Marciano tracks the powerful cross-country storm sweeping across the country, with New York City bracing for what could be the worst snowstorm in two years; Martha Raddatz reports from Israel after twin blasts killed nearly 100 in Iran; Steve Osunsami is in Atlanta with the latest as the FBI is investigating “numerous” hoax bomb threats to state capitols, including Georgia’s; and more on tonight’s broadcast of World News Tonight with David Muir.
