evidence: How to Protect Yourself in a Multicar Pileup Caused by Fog, Snow, or Ice [...] As fog, smoke, and winter weather increase the risk of severe car crashes, including the 158-vehicle pileup in Louisiana that killed at least seven people and injured 25 more on Oct. 23, 2023, you might be wondering what—if anything—you can do to protect yourself from getting involved in a similar multivehicle crash, or what to do if you find yourself stuck in one.