My blog on 25 July 2012 includes a screenshot of Newsround's web report about the Scottish Government announcement. But a significant change was made to the headline. The amended webpage report can be seen by clicking on the screenshot.
Originally I assumed that the headline was altered because the term "gay marriage" is not ideal. We are, after all, talking about marriage equality. So it seemed, at the time, that a headline "Same-sex marriage to be introduced in Scotland" was more accurate than the original.
However, having seen the recent Newsround report about proposed changes to the law in England & Wales, it now looks like the edit was because CBBC bosses simply feel that the words "gay" and "lesbian" are inappropriate for children to know.
Not a million miles from Victorian times, when words like "leg," "bottom," "trousers," and "ankle" were considered by some to be rude, and shouldn't be spoken or heard.