The & (ampersand) Symbol in Post Title Breaks Feed

This is for the "Recent Global Posts Feed" plugin (I wasn't able to select it in the drop down above, so I clicked autoblog hoping Barry would see and move it to the right spot, sorry about that!)

Using an "&" in a post title breaks the feed with an XML parse error. Removing the "&" restores functionality, but it's a bit of a bandaid.