Israel and Hezbollah exchange heavy fire as fears of war mount NBC NewsLive updates: Israel’s attacks against Hezbollah in Lebanon CNNIsrael and Hezbollah Threaten to Hit Harder, Raising Fears of All-Out War The New York TimesHezbollah hits back with rockets as it declares an ‘open-ended battle’ with Israel The Associated PressNetanyahu vows ‘whatever action is necessary’ as Hezbollah clash widens The Washington Post