They are also worried about what else Putin told Trump. If you watch the press conference again you will notice that Putin repeated the phrase “Loose Change” several times. That is a 9/11 documentary, one of the longest and most widely watched. I bet somewhere up there they are freaking out.
https://www.youtube.com/watch?v=0skCyy7TObQ
wrong link, here is the right one: https://www.youtube.com/watch?v=1F6Kbq-x1lg