It appears someone at the BBC was having a bit of an off-day when researching a story about the UN Security Council. In this clip from last Thursday's BBC Evening News we see the UNSC logo from Halo on the screen behind the news reader.
I suppose it's an easy mistake to make:
BBC researchers, Google Image Search is not your friend.
It seems the BBC are not alone in their inability to utilise Google Image Search responsibly, Canadian newspaper CanAsian Times have also posted the UNSC logo on their website: