F*** UEFA.
Whilst it's not the worst banner I've ever seen, it's just a stupid and childish thing to do. And isn't helping things at all. Yeah, Lennon's comment was pretty good, but on a Celtic forum I'm on a few people are calling it a disgrace (which in itself is a disgrace). On there in particular, there is a pretty huge division. A lot of the Irish fans aren't keen on us stopping the singing some of these songs, and you get the 3rd or 4th generation "Irish" Scots who agree with them because they think they're Irish Republicans despite having no real connection with the country anymore.
Like I've mentioned before, I've no issue with singing songs about the Old IRA but they don't belong at the football match, and songs about the PIRA (of which there are only a few) just annoy me.
Luckily there's been some success in eradicating them at games in recent weeks so I'm hoping it continues that way.
EDIT: No doubt the media will have a field day with this. And there's still the issue of whether you can ban songs about the Old IRA and the repercussions that will have, but yeah. IMO they don't belong.
Also, I believe that I previously bet my life savings that UEFA would do nothing. I retract that statement...