I heard a brief discussion of Milgram's six degrees by KCRW's Sara Terry and NYT's Somini Sengupta. It wasn't pretty, but it did get me thinking about science stories that are consistently misreported. Two immediately jumped to mind:
Milgram's Small World
The Butterfly Effect
Now that we've got things started, I'm opening the floor to nominations. What science stories can you count on to make you wince?