There is no security issues of RSS, it's just a feed of news/data for users to syndicate at a 3rd party location...
Basically you can allow users to use FireFox or another piece of software to syndicate your news "offsite" as well as allow "affiliates" to list your news.
One of my ideas for news syndication through user request was a "news scroller" which reads from an RSS feed and outputs the data which numerous news sites do now adays (though they don't use an RSS resource which would be incredibly easy to impliment).
Some programs that use RSS feeds:
Also, you can syndicate news on websites as well, I use an RSS feed on my homepage
so that I can check a good chunk of sites at once...
Do we need anymore information/