A plane is flying a banner above Apple's campus, urging the company to fight exploitative materialA plane flies above the Apple campus in Cupertino, Calif. with a banner that reads "Dear Apple, Detect Child Sexual Abuse in iCloud."Steve Kovach | CNBCHigh above Steve Jobs Theater, a small aircraft is flying a banner urging the company to do more in the fight against child sexual abuse material, or CSAM."Dear Apple, Detect Child Sexual Abuse in iCloud," the banner reads. Apple cancelled the rollout in December of a tool that...