According to Yahoo, the BBC mistakenly used the United Nations Space Command logo from Halo to represent the United Nations Security Council (from real life). Causing a collision of fiction and reality as well as some embarrassment for the BBC, the logo appeared on the first broadcast but was replaced in subsequent airings.
The logo the BBC used is the first result on a Google image search for "UNSC logo", as I discovered just now.
The eagle triumphant invaded a broadcast about the very real conflicts in Syria. It's unknown yet whether this was an intentional joke - taking trolling to a mass scale - or a consequence of Googling without doing your research. I prefer to think of it as a screencap from the future.