A New York City high school has fallen into the spotlight after 400 students ran and jumped through the halls waving Palestinian flags and calling for the removal of a Jewish teacher who shared her pro-Israel stance on social media. Now officials are seeking to turn the fallout into a "teachable moment," NYC Schools Chancellor David Banks said Monday. Videos of the protest on Nov. 20 at Hillcrest High School, which teaches about 2,500 students in Jamaica, Queens, circulated online showing hordes of students running in the halls, dancing and waving flags. But the clip drew sharp criticism, including from...