The Iran war's troubling missile math

Four days into war with Iran, at least one of the United States' Gulf allies is already running low on crucial interceptor munitions used to defend against Iranian missile and drone attacks, two sources told CNN.

"It's not panic yet, but the sooner they get here the better," one regional source told CNN, referring to a request their government made to the US for more interceptors.

That mirrors concern across the region, including in Israel, about the stockpile of weapons needed to defend against Iranian attacks, especially as President Donald Trump has floated an extended timeline for the campaign. Speaking at the White House on Monday...