She explained to me that even if I was mysteriously deficient in sporting pride, I should have at least appreciated the political side:
The punchline (as you've possibly guessed) is that she was talking about Bloody Sunday, or rather the second Irish Bloody Sunday, which happened back when my grandfather was a strapping young man. Indeed, a strapping young republican based in Dublin, which raises the possibility that he might well have been involved in the spykilling raids in the morning that fed into the more famous bloodshed in the afternoon. Not that it wasn't of course an appalling massacre, nor do I begrudge her the right to get up in metaphorical arms about it - I just wish she knew what she was angry about.
Also it's odd what you can find on Yahoo News if you poke around.
*Technically the last time they played, and the precedent ignored in the foofarah regarding playing the British national anthem in the grounds, was the 2003 Special Olympics, though I was pretty certain she wasn't talking about that.