Why didn't these bishops shake Pope Benedicts Hand?

Hi,


I didn't want to post this video because it seems controversial but i just wondered if anyone
had any explanation for why so many bishops just refused to shake Pope Benedicts hand?
It just look so bad & also sinister.
Did these same men then in turn vote for Pope Francis?
Its really shocking and disturbing to me..Maybe there is some protocol that makes this acceptable that i don't
know about?


Please help.

I didn't find the right solution from the Internet.

References:
 www.medjugorjelive.org/forum/viewtopic.php?f=13&t=39927&sid=203a31300da98519a0907e38383bcc5f
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Thanks