President Obama assured influential leaders attending the American Israel Public Affairs Committee (AIPAC) last week that the United States has Israel's back in fighting efforts made to de-legitimize the state. But how will America be positioned against Iran's potential nuclear threat to Israel? The UP w/ Chris Hayes panel - including Newsweek's Rula Jebreal, Jennifer Laszlo Mizrahi of the non-profit group The Israel Project, former legal adviser to the Palestinian negotiating team Leila Hilal, and Jeremy Ben-Ami of the lobbyist group J Street - discuss the contentious relationship between Israel and Iran.March 11, 2012