George B
Extinct but not forgotten Staff Member
And the one's that are not - are they different? Can you tell the difference? What are they?
I don't know what other people have seen . . . I don't think one can look at a trail at 30,000 feet and tell anything . . . However, if one sees one at 10 or 20,000 feet which can be verified then I would be curious. . . . I have heard of persistent trails reported for a couple of days in a row where atmospheric soundings within the area would have suggested none should have been visible. . . Since I didn't see them and can only take the word of the persons and the location where they were witnessed . . . it is weak at best. . . .