FR posters do it every day by posting "mainstream" media articles. This is how FR operates.
Summer grabbed grabbed off a lie found in the subheading and threw it up into the headline. He put it in [editor's note: brackets mark an added comment] brackets which indicates it as his own remark. When asked directly to deny his own ownership of that lie, he affirmed that, gee, he agreed with it. Like Dan Rather never could deny the Air Guard memos for the tale they told (a false tale, a lie). He found pleasant to be the bearer of a lie and still does except for the public shame it has deservedly come to bear.