Attempting to download craigslist RSS data using ASIHTTPRequest

[mwalk]

I'm attempting to add Craigslist RSS data to an iOS application I'm
creating using ASIHTTPRequest.

I've followed the instructions in this wonderful tutorial by Ray
Wenderlich: http://www.raywenderlich.com/2636/how-to-make-a-simple-rss-reader-iphone-app-tutorial

However, when I use an URL like http://portland.craigslist.org/muc/index.rss
I get no data returned. When I use a Yahoo Pipe that's setup to
connect to craigslist, it works. I'm trying to avoid using the Yahoo
Pipe for performance reasons and I don't want my app to rely on
something that could go away at anytime.

Any advice is appreciated.