Year in review

The ground might not have quaked, but the industry changed significantly in 2015. Thank (or blame) technology, unions and regulators.

They made the boldest headlines in what was indisputably an up-and-down year. The ups were rocket shots to nosebleed heights, and the downs were just as extreme—catastrophic, yet wellsprings of outrage and surprise. Here are six individuals who contributed to the rollercoaster ride.