Dash cam footage captured a dangerous moment on a winter highway during icy conditions. The camera shows traffic moving cautiously when a truck ahead hits a slick patch of road. Its unsecured cargo shifts, and suddenly large wooden blocks slide off the trailer, bouncing across the lanes. One of the blocks slams into a nearby car, sending it spinning as drivers brake and swerve to avoid the debris. Snow and wood scatter across the highway while vehicles come to a stop, hazards flashing in the col