U.S. envoy Amos Hochstein will hold talks with Lebanese officials in Beirut on Monday on conditions for a ceasefire between Israel and Iran-backed Hezbollah, two sources told Reuters, as Israel expanded its air campaign on the group's assets overnight. While Hochstein is likely to push for calm after a year of fighting during which Israel killed leaders of both Hezbollah in Lebanon and Hamas in Gaza, the U.S. has made it clear it will show unwavering support for Israel despite rising death...