Yesterday around 4 pm in Oregon I noticed high altitude planes leaving a trail in the sky. At least 5-10 trails going north-south. At 9 pm the trails were still visible and fairly defined. This is the first time I was able to keep track of the time frame and it could not possibly be a vapor trail. I wonder if there's enough proof out there to bring Chem trails to a court of law to find out why they are making them? To me yesterday was proof enough.