And how would the same arguements NOT hold for polygamous marriages, or father/daughter or father/son or brother/brother marriages Er, the arguement does hold for these practices.
Hold to your hat, we could end up miles from here.
The American jetliner has been hijacked by lunatics and put into a vertical dive. They are determined to prove that vertical flight is just as "valid" as the old traditional horizontal flight. The explosion is going to be spectacular.