[flexcoders] Can't figure out how to parse RSS

[dfalling]

I'm trying  to write a small app that will parse an inputted RSS feed. 
On some feeds (reddit.com) it works fine, but on others (slashdot.org)
the xml seems to be cut off...  the description and title for the feed
are there, but none of the items.  What is causing this?  I've wandered
tried to adapt code from dozens of different examples and still can't
understand exactly what I need.  Here's the minimal code that I'm using
now, without all the hacks and attempts I've tried:


             import mx.collections.XMLListCollection;
             import mx.utils.ArrayUtil;
             import mx.rpc.http.HTTPService;
             import mx.rpc.events.ResultEvent;
             import mx.collections.ArrayCollection;
             import mx.events.FlexEvent;

             [Bindable] private var _dataProvider:XMLListCollection = new
XMLListCollection();
             private var _httpService:HTTPService;

             private function urlSubmitted():void
             {
                 var feedUrl:String = urlText.text;
                 _httpService = new HTTPService();
                 _httpService.url = feedUrl;
                 _httpService.resultFormat = "e4x";
                
_httpService.addEventListener(ResultEvent.RESULT,dataReceived,false,0,tr\
ue);
                 _httpService.send();
             }

             private function dataReceived(event:ResultEvent):void
             {
                 _dataProvider.source = event.result.channel.item as
XMLList;
                 noDataView.visible = false;
                 dataGrid.visible = true;
             }