Doubt of Interbreeding with Neanderthals

This is an interesting article that refutes the idea that our Homo sapiens interbred with Neanderthals. A few years ago, evidence was found that showed there was shared DNA between us and Neanderthals. Scientist at the University of Cambridge are saying that the shared DNA is not a result of interbreeding but is the DNA of our shared ancestor, Homo heidelbergensis.