What happens if Israel invades Gaza?

Israeli troops are gathering near the border with Gaza and could be preparing for a ground invasion of the densely populated Palestinian territory.  The full horror of Hamas’s weekend attacks inside Israel is still emerging and it’s been described as the country’s 9/11 moment.  Today, director of the Nazarian Center for Israel Studies at UCLA, Dov Waxman on the potential ground assault and how Hamas’s allies could respond.  Featured:  Dov Waxman, director of the Nazarian Center for Israel Studies at UCLA