It’s time to use some of the critical-thinking and debunking skills we’ve been developing

It’s time to use some of the critical-thinking and debunking skills we’ve been developing this semester. I’m posting three links below (two Youtube and one Twitter) that I want you to fact-check. You won’t be able to determine their authenticity just by looking at the link – you’ll need to do some online digging to make the call. 
You should be using the techniques and resources that were covered in our “Evaluating Sources of Information” lecture from week 6. For each link, tell me how you fact-checked it and provide links to the resources you used to make that call. Tell me specifically why those resources were reliable. Explain why the claim is true, or why it’s misleading. 
Government-produced synthetic snow. (Links to an external site.)
Declassified UFO footage captured by fighter pilots. (Links to an external site.)
Betty White is older than sliced bread. (Links to an external site.)
This assignment will probably require more than 200 words to do a sufficient (5/5 points) job. I’m looking for a thorough investigation of each of these claims.