Ex-Alaska Airlines pilot Joseph Emerson pleads not guilty to 84 charges stemming from attempted mid-flight sabotage. @giobenitez has the latest. https://t.co/a1Qp1PRYOy pic.twitter.com/z3uf4IOQGQ — Good Morning America (@GMA) December 8, 2023 阿拉斯加航空前机师爱默生(Joseph Emerson)涉嫌在...