Iran under attack

As the U.S. and Israel continue offensive on Iran, Tehran faces a future without Supreme Leader Ali Khamenei. After announcing Khamenei's death on Sunday, Iran went into 40 days of national mourning. Grieving Iranians took their anger over the Supreme Leader's killing to the streets on Sunday, calling for retribution. With no end to hostilities in sight, many warn the Middle East could spiral into deeper instability and chaos. The conflict did bear a disturbing warfare pattern of missile and drone strikes — rapid deployment with deadly efficiency. So, how far and wide could the raging conflict go? What's the scope of the likely spillover, with damage to regional and global economies, as feared by many?