Just got sad news on Al McDonald: https://www.npr.org/2021/03/07/974534021/remembering-allan-mcdonald-he-refused-to-approve-challenger-launch-exposed-cover -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.hdaa.info/pipermail/list/attachments/20210307/4de53a7d/attachment.html>