In 2009, I was living in Tel Aviv during Operation Cast Lead. During that offensive, Israel killed about 1,400 Palestinians in Gaza. When small numbers of us went out into the streets to protest the war, we were often pelted with eggs or attacked by passersby. When I dropped my children off at their preschool, parents chatted as if nothing unusual was going on. When they asked me what was wrong, I would tell them I was deeply upset about what was happening just 40 miles away.