A Texas teenager has gone missing on Christmas Eve, prompting authorities to believe she may be in imminent danger. Meanwhile, a tragic helicopter collision in New Jersey resulted in the deaths of two pilots. In other news, New York state has reported the highest number of flu cases ever in a single week, underscoring the importance of public health measures during the winter season. In sports, the Pittsburgh Steelers' loss at Cleveland was met with criticism, while the San Francisco 49ers' quarterback Brock Purdy has been hailed as a game-changer for the team's Super Bowl chances. In the world of technology, Linux is expected to become unstoppable in 2026, but one open-source legend may not survive. Additionally, General Motors has achieved record stock performance, surpassing Tesla and other automakers in 2025.