Open this photo in gallery: Protesters calling for a ceasefire in Gaza block an entrance to the White House in Washington on Oct. 16.Nathan Howard/The Associated Press Raja G. Khouri and Jeffrey J. Wilkinson are the authors of The Wall Between: What Jews and Palestinians Don’t Want To Know About Each Other. The attack by Hamas on Israel on Oct. 7 was horrific. We the writers, one Jewish and one Palestinian, say this in unison. The tragedy currently unfolding in Gaza is devastating. The brutality, the loss of life, the suffering. It is hard to properly capture the pain and...