Moments after thousands of pro-Palestinian protestors descended on the US embassy in Lebanon and set fire, military members unleashed gas and smoke to push them back. The protests in the Middle East come after a blast at a hospital in Gaza that Hamas claims killed at least 500 people sparked widespread outrage. Iran-backed Hezbollah, which fought a war with Israel in 2006, called for a day of protest in Beirut on Tuesday in response to the attack. Thousands of Lebanese protesters, some waving Palestinian flags, gathered late into Tuesday night outside the US embassy in response to the incident. Video...